[news.eclipse.platform.swt] TableTreeViewer - drag and drop problem

[Evan <spam@xxxxxxxxxxx>]

Hi,
 I am trying to get drag and drop working on a TableTreeViewer control 
and am having a problem. Using the following code:

	    // add drag support to viewer
	    Transfer[] transfer = new Transfer[] { TextTransfer.getInstance()};
	    viewer.addDragSupport(DND.DROP_COPY | DND.DROP_MOVE, transfer, 
new MyDragListener(viewer));	


I stepped through the code in the debugger, and the addDragSupport 
method seems to work fine, the listener is added correctly. However no 
dragging event occurs when I attempt to drag an item in the viewer.

As a test, I dropped the exact same code in to a TableViewer control I 
am using (only changing the viewer param). In that case it worked - the 
drag event was being generated.

Is there something special about a TableTreeViewer when it comes to 
generating a drag event?

Thx,
evan