Since, Q2 2011 we have made some changes in DnD logic and introduced alternative API close the build-in framework one - http://www.telerik.com/help/silverlight/dragdropmanager-events.html. However, we have left two options to support AutoScroll:
- Switch to legacy execution mode - http://www.telerik.com/help/silverlight/raddragdropmanager-howto-change-drag-execution-mode.html
- use AutoScrollBehaiour as the one demonstrated in the project attached.
the Telerik team
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