I have an issue with rowreordering as shown in the following demo: http://www.telerik.com/help/silverlight/dragdropmanager-howto-draganddrop-within-radgridview.html
The problem lies with the positionFeedback.
There's no problem when you do not hide the groupPanel, but when you do, you get some empty white space above your grid when dragging.
Reproducing the problem:
Add the following line to the XAML of the RadGridView: ShowGroupPanel="False"
When you run the demo and start dragging, you'll notice everything gets pushed down because of the white space on top.
Additionally, when the white space gets added at first, the position of the PositionFeedback is also wrong.
The attached screenshot should add some clarification to the above.
Is there a way I can show the PositionFeedback without that white space on top while not showing the groupPanel?
I'm not really keen on changing the style of the RadGridView to get something like it added in, I'd prefer that it stays in the behavior itself.