Root AdornerLayer Not Found. Please make sure that your root visual is Window or other element that has an adorner layer

[Ivo]

Hi, I am recieving following error while trying to reorder columns in RAD TreeListView
I m using the control inside VS plugin window, inside  UserControl.

I have found that simmilar error was already resolved for GridView.

System.InvalidOperationException was unhandled
  Message=Root AdornerLayer Not Found. Please make sure that your root visual is Window or other element that has an adorner layer. Alternatively, wrap your root panel in an <AdornerDecorator> element.
  Source=Telerik.Windows.Controls
  StackTrace:
       at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.OpenPopup()
       at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.StartDragging()
       at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.TryStartDrag(IMouseEventArgs e)
       at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.OnTrackedElementMouseMoveInternal(IMouseEventArgs e)
       at Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.OnCoverRectangleMouseMove(Object sender, MouseEventArgs e)
       at System.Windows.Input.MouseEventArgs.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.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.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
  InnerException:

[Yavor Georgiev]

Hi Ivo,

 Did you try wrapping your plugin window's root panel in an AdornerDecorator?

Kind regards,
Yavor Georgiev
the Telerik team

[Ivo]

Hi,

I tried adding AdornerDecorator using code suggested in following thread:  http://www.telerik.com/community/forums/wpf/gridview/radgridview-exception-on-reordercolumn-dragcolumn-in-panelgroup.aspx

It did not solve the problem.

In order to reproduce the issue, I created sample VS 2010 project.
1.  New Project ( C# -> Extensibility  -> Visual Studio Package)
2. Switched on Tool Window
3. Added RadTreeListView to automaticaly generated ( from VS 2010 ) MyControl.xaml control.
4. Loaded some sample data

Trying to reorder columns I recived the described error.

Note: I was not able to attach the .zip file demonstrating the problem, so let me know you will need the sample code and where i can upload it.

[Ivo]

I have opened a support ticket incident : 341040
Sample solution demonstrating the problem was attached to the ticket.