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strange error

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This is a migrated thread and some comments may be shown as answers.

Francisco asked on 05 Sep 2011, 09:34 PM

Hi

I create some ecample od RadDocking I obtain this error:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.2)
Timestamp: Mon, 5 Sep 2011 20:19:28 UTC

Message: Unhandled Error in Silverlight Application
Code: 4004
Category: ManagedRuntimeError
Message: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId) [Line: 0 Position: 0] ---> System.Windows.Markup.XamlParseException: Set property 'Telerik.Windows.Controls.RadMenuItem.Command' threw an exception. [Line: 1429 Position: 37] ---> System.ArgumentNullException: Value cannot be null.
Parameter name: element
   at MS.Internal.XcpImports.ItemsControl_GetItemsOwner(DependencyObject element)
   at System.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.ItemsControl.ItemsControlFromItemContainer(DependencyObject container)
   at Telerik.Windows.Controls.RadMenuItem.CanExecuteApply()
   at Telerik.Windows.Controls.RadMenuItem.ChangeCommand(ICommand oldCommand, ICommand newCommand)
   at Telerik.Windows.Controls.RadMenuItem.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.RadMenuItem.set_Command(ICommand value)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)
   --- End of inner exception stack trace ---
   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.DataTemplate_LoadContent(DataTemplate template)
   at System.Windows.DataTemplate.LoadContent()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged()
   at Telerik.Windows.Controls.RadPane.OnContextMenuTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty property)
   at MS.Internal.FrameworkCallbacks.InvalidateProperty(IntPtr nativeTarget, UInt32 propertyId)

Line: 56
Char: 13
Code: 0
URI: http://localhost:2166/test_dockTestPage.aspx

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strange error

4 Answers, 1 is accepted