I'm getting a crash:
System.ArgumentNullException HResult=0x80004003 Message=Value cannot be null. Parameter name: dataObject Source=Telerik.Windows.Controls.Diagrams StackTrace: at Telerik.Windows.Controls.Diagrams.DataTransferService.HandleDiagramElementDrop(DataObject dataObject)
looking up the stack I can see:
Telerik.Windows.Controls!Telerik.Windows.DragDrop.DragDropManager.DoDragDrop(System.Windows.DependencyObject dragSource, object data, System.Windows.DragDropEffects allowedEffects, System.Windows.DragDropKeyStates initialKeyState, object dragVisual, System.Windows.Point relativeStartPoint, System.Windows.Point dragVisualOffset)
However, I didn't do a drag and drop, I did a double click on a combo box. Plus the RadDiagram has AllowDrop="False". What's going on here?
I did try to put together a sample to see if I can reproduce this but can't seem to get RadDiagram to appear (see link)