Questions on UI for WPF Forum

2 answers

154 views

Comparison between telerik and MS WPF control

It would be nice to have a comparison between a telerik control and the Microsoft native equivalent if it exists.

It's easier to point management to a web page that illustrates why the telerik control is a better alternative to the built-in control. It would help sell a lot more copies :-)

Thanks,
Ash

General Discussions

answered on 09 Nov 2009

1 answer

132 views

Gridview Styling issues

I've searched through the forum and documentation but can't seem to find an answer to these styling issues.

1. How to style the header cell background when a column is sorted or the header cell is hovered.

2. How to style the foreground of a selected row

3. How to style the 'column freeze' bar

4. How to style the Horizontal and Vertical Scroll Bars

5. How to style the column filter indicator.

Any tips on these would be very appreciated.

GridView

answered on 09 Nov 2009

7 answers

227 views

Simple Combobox column - clearly I am missing the obvious...

Hey all!

Now, clearly this is my problem and not one with the grid however I am just not seeing how I am going wrong. Given the following XAML...

    
                    <telerik:RadGridView Name="radGridView1" AutoGenerateColumns="False" UseAlternateRowStyle="True">  
        
                        <telerik:RadGridView.Columns> 
        
                            <telerik:GridViewComboBoxColumn UniqueName="Active" DataMemberBinding="{Binding IsActive}" SelectedValueMemberPath="Value" DisplayMemberPath="Title" /> 
        
                            <telerik:GridViewDataColumn UniqueName="User" DataMemberBinding="{Binding Name}" /> 
        
                        </telerik:RadGridView.Columns> 
        
                    </telerik:RadGridView>

And the following code to fill it...

    
                    public Window1()  
        
                    {  
        
                        InitializeComponent();  
        
                        var activeflaglist = new List<ActiveFlag>();  
        
                        activeflaglist.Add( new ActiveFlag{ Title = "Yes", Value = "Y" } );  
        
                        activeflaglist.Add( new ActiveFlag{ Title = "No", Value = "N" } );  
        
                        var userlist = new List<User>();  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "Bob StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "N", Name = "Fred StartsInActive" } );  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "John StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "Alice StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "N", Name = "Janet StartsInActive" } );  
        
                        var activeColumn = (GridViewComboBoxColumn)radGridView1.Columns["Active"];  
        
                        activeColumn.ItemsSource = activeflaglist;  
        
                        radGridView1.ItemsSource = userlist;  
        
                    }

If you build the project (the link is below) and then try to use the combo box a crash is instant. What a I missing?

http://drop.io/hidden/wddviyal73bufj/asset/Y29tYm9ib3hlcnJvci16aXA%253D

Ken

GridView

answered on 09 Nov 2009

3 answers

150 views

AggregateFunction not working

Hi,
I have a grid with auto-generated columns, which allows the user to group by any column. I want to show the number of records for whichever column the user has groups.

In added an event handler for the Grouping event and put this code, but I got an exception (shown below):

    
            private void WipGrid_Grouping(object sender, Telerik.Windows.Controls.GridView.GridView.GridViewGroupingEventArgs e)  
        
            {  
        
               var countFunction = new CountFunction("count", e.GroupDescriptor.Member, "Total records: ");  
        
               e.GroupDescriptor.AggregateFunctions.Add(countFunction);  
        
            }

Then, I realized the constructor with parameters is obsolete, so I tried the following code, but I got the same error

    
            private void WipGrid_Grouping(object sender, Telerik.Windows.Controls.GridView.GridView.GridViewGroupingEventArgs e) 
        
                    { 
        
                        var countFunction = new CountFunction(); 
        
                        countFunction.Caption = "Total records: "; 
        
                        countFunction.FunctionName = "Count"; 
        
                        e.GroupDescriptor.AggregateFunctions.Add(countFunction); 
        
                    }

What am I missing?   How can I implement this feature?

Exception:
System.Reflection.TargetInvocationException was unhandled
Message="Exception has been thrown by the target of an invocation."
Source="mscorlib"
StackTrace:
       at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
       at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
       at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
       at System.Delegate.DynamicInvokeImpl(Object[] args)
       at System.Windows.RoutedEventArgs.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.RaiseEvent(RoutedEventArgs e)
       at Telerik.Windows.Controls.GridView.GridViewItemsControl.RaiseGroupingEvent(IColumnInfo draggedCell, Int32 index, GroupingEventAction groupingEventAction)
       at Telerik.Windows.Controls.GridView.GridViewGroupPanel.Telerik.Windows.Controls.GridView.DragDrop.IDropTarget.Drop(UIElement draggedElement)
       at Telerik.Windows.Controls.GridView.DragDrop.DragDropManager.EndDrag(Boolean drop)
       at Telerik.Windows.Controls.GridView.DragDrop.WpfDragDropManager.EndDrag(Boolean drop)
       at Telerik.Windows.Controls.GridView.DragDrop.DragDropManager.ProcessMouseLeftButtonUp()
       at Telerik.Windows.Controls.GridView.GridViewHeaderCell.OnMouseLeftButtonUp(MouseButtonEventArgs e)
       at System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)
       at System.Windows.Input.MouseButtonEventArgs.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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
       at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
       at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
       at System.Windows.Input.MouseButtonEventArgs.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.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.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
       at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
       at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.Run()
       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 Intel.Cqn.Luminis.LuminisEXE.App.Main() in C:\Projects\Source\Luminis\DEV\Luminis\Intel.Cqn.Luminis.LuminisEXE\obj\Debug\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(Assembly 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)
       at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.ArgumentException
       Message="An item with the same key has already been added."
       Source="mscorlib"
       StackTrace:
            at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
            at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
            at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
            at Telerik.Windows.Data.Dynamic.ClassFactory.GetDynamicClass(IEnumerable`1 properties)
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateProjectionNewExpression(IEnumerable`1 propertyValuesExpressions)
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateProjectionInitExpression()
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateAggregateFunctionsProjectionMemberBinding()
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<CreateMemberBindings>d__0.MoveNext()
            at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
            at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
            at System.Linq.Expressions.ReadOnlyCollectionExtensions.ToReadOnlyCollection[T](IEnumerable`1 sequence)
            at System.Linq.Expressions.Expression.MemberInit(NewExpression newExpression, IEnumerable`1 bindings)
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateSelectBodyExpression()
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateSelectExpression()
            at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilderBase.CreateQuery()
            at Telerik.Windows.Data.Expressions.GroupDescriptorCollectionExpressionBuilder.CreateQuery()
            at Telerik.Windows.Data.QueryableExtensions.GroupBy(IQueryable source, GroupDescriptorCollection groupDescriptors)
            at Telerik.Windows.Data.QueryableCollectionView.CreateView()
            at Telerik.Windows.Data.QueryableCollectionView.get_QueryableView()
            at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
            at Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
            at Telerik.Windows.Data.QueryableCollectionView.get_ItemCount()
            at Telerik.Windows.Controls.GridView.GridViewDataControl.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
            at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
            at Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at Telerik.Windows.Data.QueryableCollectionView.RefreshAndRaiseCollectionChanged(NotifyCollectionChangedEventArgs args)
            at Telerik.Windows.Data.QueryableCollectionView.Refresh()
            at Telerik.Windows.Data.QueryableCollectionView.EndDefer()
            at Telerik.Windows.Data.QueryableCollectionView.DeferHelper.Dispose()
            at Telerik.Windows.Controls.GridView.GridViewDataControl.PerformGrouping(String member, Object displayContent, Nullable`1 insertionIndex)
            at Telerik.Windows.Controls.GridView.GridViewDataControl.<>c__DisplayClass2a.<GroupingRequested>b__29()
            at Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
            at Telerik.Windows.Controls.GridView.GridViewDataControl.GroupingRequested(Object origin, GroupingRequestedEventArgs e)
       InnerException:

Regards,
Marco

GridView

answered on 09 Nov 2009

3 answers

75 views

WPF Q3 is out. Is the Book missing ?

Wasnt there supposed to be a WPF book control also in the Q3 release ?

General Discussions

answered on 09 Nov 2009

1 answer

135 views

How to Move Scroll

Hi, I have a question , I need to move the scroll into a possition in the row where was selected, this is my code

                                           rgvPatients.SelectedItem = rgvPatients.Items[contRowsPatients];
                                            rgvPatients.ScrollIntoView(rgvPatients.SelectedItem);
                                            rgvPatients.UpdateLayout();

but never update the vertical scroll

GridView

answered on 09 Nov 2009

5 answers

258 views

Data is not displayed in the RadCarousel control for items less than 8

Hi,

.xaml Code:

<

telerik:RadCarousel x:Name="rdcTasks" AutoGenerateDataPresenters="False" telerik:StyleManager.Theme="Office_Black" Margin="0,227,0,6" SelectionChanged="rdcTasks_SelectionChanged" Height="179" VerticalAlignment="Bottom" Loaded="rdcTasks_Loaded"></telerik:RadCarousel>

.net code:

foreach

(TaskQueryService.task objTask in objTasks)

this.rdcTasks.Items.Add(objTask);

As the the number of items in the datasource is 4, the control doesnt display any data on the screen. I have to scroll to get the stuff displayed. where as if the items are 8 or more the items are displayed. I have another control with same properties set and its working. (dataitems are 49).

Please reply.

Shweta

Carousel

answered on 07 Nov 2009

11 answers

165 views

Tab problem- 2009q2

Hello,

I have a grid connected to a DataView. The DataView has a rowfilter.

I add lines to the DataView by code.

The problem is that if I enter into a cell, change its value and press on Tab, the cell somehow keeps focus (the cell's text is aligned to

the center and pressing on Tab keeps the align to the right of the cell).

This also has a weird effect on that specific row- it disregards the DataView filter.

This does not happen if I input a value to the cell and then move the focus to another cell by

clicking on it and not by the Tab key.

Thanks,

Erez

GridView

answered on 06 Nov 2009

2 answers

107 views

Edit ComboBox Exception

Hello
I cant find the exactly event
but when I "play" with the ComboBox cell I get this exception:

System.Reflection.TargetInvocationException was unhandled
Message="Exception has been thrown by the target of an invocation."
Source="mscorlib"
StackTrace:
       at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
       at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
       at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
       at System.Delegate.DynamicInvokeImpl(Object[] args)
       at System.Windows.RoutedEventArgs.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.RaiseEvent(RoutedEventArgs e)
       at Telerik.Windows.Controls.GridView.GridViewCell.RaiseCellEditEndedEvent(GridViewEditAction editAction)
       at Telerik.Windows.Controls.GridView.EditContext.CommitValidContent(GridViewCell cell, GridViewCell nextCell)
       at Telerik.Windows.Controls.GridView.EditContext.CommitCellEdit(GridViewCell cell, GridViewCell nextCell)
       at Telerik.Windows.Controls.GridView.EditContext.CommitEdit()
       at Telerik.Windows.Controls.GridView.GridViewCell.HandlePendingEdit()
       at Telerik.Windows.Controls.GridView.GridViewCell.Editor_LostFocus(Object sender, RoutedEventArgs e)
       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 e)
       at System.Windows.UIElement.OnLostFocus(RoutedEventArgs e)
       at System.Windows.UIElement.IsFocused_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)
       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, OperationType operationType)
       at System.Windows.DependencyObject.ClearValueCommon(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata)
       at System.Windows.DependencyObject.ClearValue(DependencyPropertyKey key)
       at System.Windows.Input.FocusManager.OnFocusedElementChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
       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, OperationType operationType)
       at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)
       at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
       at System.Windows.Input.FocusManager.SetFocusedElement(DependencyObject element, IInputElement value)
       at System.Windows.Input.KeyboardNavigation.UpdateFocusedElement(DependencyObject focusTarget)
       at System.Windows.FrameworkElement.OnGotKeyboardFocus(Object sender, KeyboardFocusChangedEventArgs e)
       at System.Windows.Input.KeyboardFocusChangedEventArgs.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.RaiseEvent(RoutedEventArgs args, Boolean trusted)
       at System.Windows.Input.InputManager.ProcessStagingArea()
       at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
       at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)
       at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
       at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew)
       at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)
       at System.Windows.UIElement.Focus()
       at Telerik.Windows.Controls.GridView.GridViewDataControl.FocusIfNeeded()
       at Telerik.Windows.Controls.GridView.GridViewDataControl.OnMouseLeftButtonDown(MouseButtonEventArgs e)
       at System.Windows.UIElement.OnMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e)
       at System.Windows.Input.MouseButtonEventArgs.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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
       at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
       at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
       at System.Windows.Input.MouseButtonEventArgs.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.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.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
       at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
       at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.Run()
       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 LeumiPortal_csharp.App.Main() in D:\Develop\LeumiAnnualWorkplan\Dev - Current\LeumiAnnualWorkplan\LM_WPF_TEST\obj\Debug\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(Assembly 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)
       at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.NullReferenceException
       Message="Object reference not set to an instance of an object."
       Source="LM_WPF_TEST"
       StackTrace:
            at LeumiPortal_csharp.ActivityInformation.gvCustomersIn_CellEditEnded(Object sender, GridViewCellEditEndedEventArgs e) in D:\Develop\LeumiAnnualWorkplan\Dev - Current\LeumiAnnualWorkplan\LM_WPF_TEST\ActivityInformation.xaml.cs:line 644
       InnerException:

GridView