Hey there,
I am planning to have two TreeViews, and both should have items that can be
dragged & dropped into each other.
However, there are also "category" nodes that include the actual data nodes.
I do not want a whole "category" node to be dragged around, only its child
items.
Now my question: How would I prevent the dragging of such a node?
What I tried was the following:
//-------------------------------------------------------------
//-------------------------------------------------------------
treeView.DragBegin += HandleMyDragBegin;
.....
[GLib.ConnectBefore]
void HandleMyDragBegin (object o, DragBeginArgs args)
{
TreeIter iter;
if (treeView.Selection.GetSelected(out iter))
{
...find out if selected node is a category, works...
if (isCategory)
{
*args.RetVal = false;*
}
}
}
//-------------------------------------------------------------
//-------------------------------------------------------------
But that did not achieve anything.
Is there even a way to stop the dragging or is the best I can do to not
accept the "category" node when dropped?
--
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