I have a TreeListView as the drag source. The nodes user selected will be dragged and dropped to a TreeView on the right. I need to implement a policy to prevent some nodes from dragging over and I thought I could do this is the DragQuery event handler. However, the event does not seem to fire at all for TreeListView. I had no problem doing this with a RadTreeView. I am wondering whether I didn't coded it right or it is by design. Here is the declaration of the event handler with my RadTreeListView.
sender, DragDropQueryEventArgs e)
If this is by design (I doubt that is the case), which event handler should I implement a drag and drop policy?