Hi,

I have encountered a problem, where the following code lead to unreasonable behavior with the SubordinateGroup of a Node:

ShapeNode master = new ShapeNode() {Text = "master" };
ShapeNode sub = new ShapeNode() {Text = "sub" };

diagram.Nodes.Add(master);
diagram.Nodes.Add(sub);

sub.AttachTo(master, AttachToNode.MiddleRight);

DiagramNodeCollection collection = diagram.Nodes.Clone();

diagram.ClearAll();

diagram.Nodes.Add(collection[0]);
diagram.Nodes.Add(collection[1]);
 

Interestingly, the SubordinateGroup of the master-Node is null after a diagram.ClearAll() is executed.

Best regards,

Cyrinael

Hi Slavcho,

I am currently trying to do that, but the problem is, that I cannot create a Group that is independent of a Diagram object, neither can I actually set the attachedNodes, since they are only readable and can only be set with the attachTo-Method.

Both constructors generate a Group that link to the Diagram and if I delete the Diagram, the references to the MainItem and the attachedNodes will be null.

Is there another way to actually maintain a copy of the groups, even if the Diagram is cleared?

Best regards,

Cyrinael

Hi Slavcho,

I made my own Group Class in which I store the MainItem and the AttachedNodes. I now save all groups twice, so that I can restore the Diagram-Group after I cleared the diagram. This works pretty well, nevertheless it is not the nicest solution in my opinion.

Thank you for your effort,

Cyrinael