I have the following problem. Instead of copying the nodes using copying constructor and drag&drop I would like to move the object from NodeListView to Diagram or at least make a duplicate and then delete the prototype. The problem is that that I cannot intercept the Drop event. Xaml looks like this:
[code]
<diag:Diagram x:Name="diagram"
AlignToGrid="True"
ShowGrid="True"
Bounds="0, 0, 1000, 1000"
NodeCreated="OnNodeCreated"
NodeCreating="OnNodeCreating"
NodeModified="OnNodeModified"
LinkCreated="OnLinkCreated"
ShapeBrush="LightBlue"
DefaultShape="Rectangle"
MouseRightButtonDown="OnDiagramRightDown"
MouseRightButtonUp="OnDiagramRightUp"
AllowDrop="True"
Drop="OnDiagramDrop"/>
[/code]

And the handler simply:
[code]
private void OnDiagramDrop(object sender, DragEventArgs e)
{
     ;
}
[/code]
I assume that In the handler I could do what I want to but I just cannot force the app to handle (fire?) the event.

This approach is the workaround I was working on, but it is still a workaround. Is there a way to modify the built-in behaviour to have the node moved and not copied?

How to switch off the default behaviour? Does it base on MouseUp event?