I need your help!
I have a NodeTemplate with a TextBox in it. If I have a Diagram where I have two of this nodes, one is visible and the other is hidden and use DragSelectingTool I get 2 selected Nodes.
If I use a node with a Label in its Template and do the same things I get only one selected node, which is exact what I want.
I have many node templates all nearly the same, but with other controls in - but only the template with the TextBox behaves like this. I even changed it to a DevExpress TextEdit control and the TextEdit shows the same behavior as the TextBox.
I have no idea.