RichTextBox in a RadTreeListView

[Prabhu]

Hi,

I'm trying to use a RichTextBox in a RadTreeListView. Below is the xaml

<telerik:RadTreeListView Grid.Row="1"
                                 HorizontalAlignment="Stretch"
                                 VerticalAlignment="Stretch"
                                 x:Name="RTLView"
                                 AutoGenerateColumns="False"
                                 IsSynchronizedWithCurrentItem="True"
                                 IsReadOnly="True"
                                 ItemsSource="{Binding Items}"
                                 ItemContainerStyle="{StaticResource ItemContainerStyle}"
                                 IsFilteringAllowed="False">
            <telerik:RadTreeListView.ChildTableDefinitions>
                <telerik:TreeListViewTableDefinition ItemsSource="{Binding Children}" />
            </telerik:RadTreeListView.ChildTableDefinitions>
            <telerik:RadTreeListView.Columns>
                <telerik:GridViewDataColumn Width="350">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <RichTextBox x:Name="ItemName"
                                         ux:RichTextBoxHelper.DocumentMarkup="{Binding Name, UpdateSourceTrigger=PropertyChanged}"
                                         Margin="{Binding Margin}"
                                         Padding="0,5,0,0"
                                         VerticalScrollBarVisibility="Auto"
                                         Cursor="Arrow"
                                         Focusable="False"
                                         MaxHeight="80" />
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
       </telerik:RadTreeListView.Columns>
 </telerik:RadTreeListView>

When i run the application, the content renders properly the first time but when i select any row, I'm getting the following exception.

System.InvalidCastException was unhandled by user code
  Message=Unable to cast object of type 'System.Windows.Documents.Paragraph' to type 'System.Windows.UIElement'.
  Source=Telerik.Windows.Controls.GridView
  StackTrace:
       at Telerik.Windows.Controls.SelectableTextBoxDragHandler.OnMouseLeftButtonDown(Object sender, MouseButtonEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\TreeListView\SelectableTextBoxDragHandler.cs:line 28
       at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       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.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)
       at System.Windows.Input.InputManager.ProcessStagingArea()
       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, WindowMessage 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, Int32 numArgs)
       at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
       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.Window.ShowHelper(Object booleanBox)
       at System.Windows.Window.ShowDialog()
  InnerException:


Earlier i used the same RichTextBox in a ListView, it worked fine. After changing to RadTreeListView I'm facing issues.

Please help!

[Vlad]

Hi,

 This is already fixed! Please upgrade to our latest official version (Q3 2011 Sp1).

All the best,
Vlad
the Telerik team