I'm using Composite Application Guidance to develop Silverlight & WPF applications sharing source code.  Our application makes extensive use of drag/drop, and much of the business logic around when to allow drops and what to do with a drop belongs in our presenter classes.  One solution might be for our presenters to register class handlers for drag and drop events and apply our business logic on behalf of the views.

Hi Ken,

The RadDragAndDrop manager does not exist yet for WPF.

It will be part of the Q2 release, which will be out in July and it will work the same way as it does in Silverlight (same API and almost the same functionality).

For its first version it will rely on UI adorners and therefore it will not support dragging across different application windows (this is the only difference that I can think of). 

Hopefully the Q2 release will not be too late for you and you will be able to make use of the drag & drop there.

Best wishes,
Miroslav
the Telerik team