Hi.  When I load a large existing .xml file with the dock manager layout information:

ultraDockManager.LoadFromXML(stream);

I'm getting an exception in the control's VisibleChanged event.  I want to be able to pin the control in code (after loading) and this is the code:

ultraDockManager.PaneFromControl(

this).Pinned = true;

However, this code is executed as the .xml file is being loaded.  And during that time, the code above sometimes causes a null reference exception.  The call does return a valid DockableControlPane object.  But, setting the Pane.Pinned property = true causes an exception.

Any idea why?