Node will be disappear after change diagram control parent


I have a case to move a diagram to a new window, and move back after close the window. (Keep the instance)

And there a problem that the node will disappear after move back.
The problem only haappen when the diagram’s original parent control is host in a tab control.

Dll Version:

Have you set to false?

What kind of tab control are you using?

I will use the System.Windows.Controls.TabControl.

UnloadingClearsPartManager Property is work for me.

Thank you so much.