Node deleted but still shown in the DiagramSurface

Jason,

I have two diagrams. When a node created in diagram 1, another node will be automatically created in the second diagram. The two nodes are associated with each other. This part is working fine. The two diagrams are in two tabs

When one of the node is deleted in one diagram, the associated node should be deleted from another diagram. I found that the number of Nodes in the second diagram is created, but when I switch to the tab which contains the second diagram, the node is still shown there.

And the DiagramSurface is a derived one.

What could be wrong, thank you!

    public override void Remove()
    {
        if (mxAssociatedNode != null)
        {
            mxAssociatedNode.DetachConnectionPoints(0);
            mxAssociatedNode.Diagram.Nodes.Remove(mxAssociatedNode);
        }
    }

Best, Xiaochu

Hello Xiaochu

I have not been able to reproduce this issue at my end. Do you have your own custom diagram implementation? If so, is your Nodes collection an observable collection, or something that raises collection changed notifications? As long as this is true, the diagram surface will detect the changes and update the visuals - even if it is in a different tab. Could you please send a simple project demonstrating this issue. I'd be happy to debug it and find the problem.

-Jason Fauchelle

Jason,

Never mind, it is my mistake. I did not realize that there is a ghost diagram which caused this weird behavior.

Thank you! Xiaochu