Hi Stoyan,

I Have two ShapeNodes (refer them as "A" and "B") on diagram. I need to connect them by dragging a link from A to B, with a custom feature:
- When Mouse Leave "A" during link drag operation, a temporary ShapeNode must be drawn. (depending a keypressed, node must follow mouse pointer or will be drawn in a fixed position)
- When Mouse Enter "B" the temporary node must be deleted

I Have

Diagram.Behavior = Behavior.DrawLinks 

"A" and "B" Shape Nodes attaching event handlers:

node.Adorner.MouseLeave += new MouseEventHandler(node_MouseLeave);
            node.Adorner.MouseEnter += new MouseEventHandler(node_MouseEnter);
 

MouseLeave event handler:

protected void node_MouseLeave(object sender, MouseEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                  // Do something like draw temporary node
             }

        }
 

The problem is that MouseEnter and MouseLeave events will never raised when mouse button is pressed... How can I solve?

Thanks for your help,
Best Regards
Amx

Calling Diagram.RelaseMouseCapture gives me more control but I encounter another problem: MouseLeave events is raised many times, not only when I really leave node but also when I press mouse left button over node.

I tried also with Diagram.Behavior = Behavior.DoNothing, but unsuccessfully (MouseLeave event is raised when I click on node).

There is a mode to avoid this event to be raised when I click on node?

Thanks,
Amx

Hi, Stoyan

At this moment, I have made this workaround you suggested me, handling LinkCreating event in conjunction with MouseMove and seems to work correctly.

But I need to know if in the future it will be possible to isolate MouseEnter/Leave events in order to give my company a complete picture of product features.

Thanks for your help,
Amx