or
System.NullReferenceException was unhandled
Message=Object reference not set to an instance of an object.
Source=Telerik.Windows.Controls.GridView
StackTrace:
at Telerik.Windows.Controls.GridView.GridViewCell.SetCellElement() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 508
at Telerik.Windows.Controls.GridView.GridViewCell.HideEditor() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 744
at Telerik.Windows.Controls.GridView.GridViewCell.ToggleEditor() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 1057
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnCellEditModeChanged(GridViewCell cell, Boolean newIsInEditMode) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Editing.cs:line 396
at Telerik.Windows.Controls.GridView.GridViewCell.IsInEditModeChanged(DependencyObject target, DependencyPropertyChangedEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 1045
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at Telerik.Windows.Controls.GridView.GridViewCell.set_IsInEditMode(Boolean value) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 305
at Telerik.Windows.Controls.GridView.GridViewCell.RaiseCellEditEndedEvent(GridViewEditAction editAction) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 1156
at Telerik.Windows.Controls.GridView.GridViewDataControl.PerformCellEditEnded(GridViewCell currentCell) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Editing.cs:line 108
at Telerik.Windows.Controls.GridView.GridViewDataControl.CommitCellEdit(GridViewCell currentCell, Boolean isLeavingRow) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Editing.cs:line 69
at Telerik.Windows.Controls.GridView.GridViewDataControl.CommitEdit() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Editing.cs:line 1011
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnCommitEditCommand(Object sender, ExecutedRoutedEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Commands.cs:line 289
at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.UIElement.OnExecutedThunk(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
at System.Windows.Input.RoutedCommand.Execute(Object parameter, IInputElement target)
at Telerik.Windows.Controls.GridView.GridViewDataControl.ExecutePendingCommand() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.Commands.cs:line 65
at Telerik.Windows.Controls.GridView.GridViewDataControl.PendAndExecuteCommands(KeyEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 4112
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnKeyDown(KeyEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 4085
at System.Windows.UIElement.OnKeyDownThunk(Object sender, KeyEventArgs e)
at System.Windows.Input.KeyEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
at System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
at System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
at System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at System.Windows.Interop.HwndSource.OnPreprocessMessageThunk(MSG& msg, Boolean& handled)
at System.Windows.Interop.HwndSource.WeakEventPreprocessMessage.OnPreprocessMessage(MSG& msg, Boolean& handled)
at System.Windows.Interop.ComponentDispatcherThread.RaiseThreadMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at Rap1D.Rap1D_WPF.App.Main() in C:\SVN\Rap1DGui\trunk\src\Rap1D_WPF\obj\x86\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
at System.Activator.CreateInstance(ActivationContext activationContext)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
<
telerik:RadTabControl
x:Name
=
"tabBottomTabPanel"
Grid.Row
=
"2"
ItemsSource
=
"{Binding BottomTabs}"
SelectedItem
=
"{Binding SelectedBottomTab}"
>
</
telerik:RadTabControl
>
private ObservableCollection<
RadTabItem
> _BottomTabs;
public ObservableCollection<
RadTabItem
> BottomTabs
{
get { return _BottomTabs; }
set
{
if (_BottomTabs != value)
{
_BottomTabs = value;
RaisePropertyChanged("BottomTabs");
}
}
}
private RadTabItem _SelectedBottomTab = null;
public RadTabItem SelectedBottomTab
{
get { return _SelectedBottomTab; }
set
{
if (_SelectedBottomTab != value)
{
_SelectedBottomTab = value;
RaisePropertyChanged("SelectedBottomTab");
}
}
}
private void setupBottomTabs()
{
RadTabItem tabA = new RadTabItem { Header = "Tab A" };
RadTabItem tabB = new RadTabItem { Header = "Tab B" };
RadTabItem tabC = new RadTabItem { Header = "Tab C" };
BottomTabs = new ObservableCollection<
RadTabItem
>();
BottomTabs.Add(tabA);
BottomTabs.Add(tabB);
BottomTabs.Add(tabC);
}
using Telerik.Windows.Controls.ScheduleView; using Telerik.Windows.DragDrop.Behaviors; namespace DragDrop { public class AppointmentConverter : DataConverter { /// <summary> /// Returns a list of all formats that the data in this data object can be converted to. /// </summary> public override string[] GetConvertToFormats() { string assemblyName = typeof(Appointment).AssemblyQualifiedName; return new string[] { assemblyName }; } /// <summary> /// Retrieves a data object in a specified format; the data format is specified by a string. /// </summary> public override object ConvertTo(object data, string format) { if (DataObjectHelper.GetDataPresent(data, typeof(ScheduleViewDragDropPayload), false)) { ScheduleViewDragDropPayload payload = (ScheduleViewDragDropPayload)DataObjectHelper.GetData(data, typeof(ScheduleViewDragDropPayload), false); if (payload != null) { return payload.DraggedAppointments; } } return null; } } }
I cannot drag a CustomAppointment (as coded in the Telerik Demo)
back to a list box from a schedule view. No exception or error,
it just simply doesn't let me (cursor icon changes to a 'not
permitted' icon).
I want the menus of my RADMenu to appear instantly.
No scrolling or fading in - the menus should just pop up instantly when I click on a RadMenuItem.
What is the most simple way to do this?
In the following piece of code I'm loading some RTF text into a telerik RadRichTextBox. Does anyone know how to set the text control to wrap the text to the box width? Take into account that the sample code is part of a DataTemplate in the resources section of a window, therefore variable _reportRTFBox is not available in window code behind
<
Grid
>
<
Grid.RowDefinitions
>
<
RowDefinition
/>
<
RowDefinition
/>
</
Grid.RowDefinitions
>
<
telerikProvider:RtfDataProvider
Grid.Row
=
"1"
Rtf
=
"{Binding ReportToDistributeRTF}"
RichTextBox
=
"{Binding ElementName=_reportRTFBox}"
/>
<
telerik:RadRichTextBox
Grid.Row
=
"0"
x:Name
=
"_reportRTFBox"
MaxHeight
=
"200"
ScrollViewer.VerticalScrollBarVisibility
=
"Auto"
ScrollViewer.HorizontalScrollBarVisibility
=
"Auto"
IsReadOnly
=
"True"
/>
Many thanks,
Juanjo