Set to true when AllowDragDrop is also true, the thumbnail control will automatically handle thumbnail rearranging with linked viewers. It is not necessary to automatically save a reordered image server-side everytime a drag drop event is raised; the thumbnail control will request the correct image and annotation layer from the server, regardless of the thumbnail order.
The client side method getThumbnailOrder() will return the current order of the thumbnails in the control.
When returning from the server after saving the reordered image, the client side method Invalidate() should be called.
AutoDragDrop cannot be true if: