I have more than 4 occurrences of DocumentContent in a DocumentPane. When I rearrange all of the content (dock some on bottom, dock some on top, dock some on right, etc...), every now and then I receive the following exception when I right click a tab to
close all the other tabs:
DocumentPane must be put under a DockingManager!
The problem is that all of the DocumentContent as well as the DocumentPane is under a DockingManager.
What is going on?