I have a control called FolderTreeView that derives from
System.Windows.Forms.TreeView and automatically populates itself with
TreeNodes representing the Windows file system. Here's the behavior I'm
seeing:

1) Add the FolderTreeView control to my Form in the designer.
2) Modify the FolderTreeView.cs file.
3) Rebuild and go back to the Form designer that is hosting the control
from step 1.

The result is another root "Desktop" node has been added to the control
so I end up with duplicated entries. My theory is that the Nodes
property from the base TreeView class is being persisted with the form.
Then, the FolderTreeView's constructor runs which calls Nodes.Clear()
and then populates the control with top level FileSystem objects. Next,
the old nodes from before the rebuild are added back to the TreeView
control which results in duplicates.

My best guess at fixing this is to somehow prevent the designer from
persisting the Nodes property of the FolderTreeView control. But since
this property is inherited from TreeView I'm not sure how to change the
way it is persisted. Please help!

-Mike-