Is there some way to identify a given node - except through the text of that node? That is, in the example below the node "Great-Grandson" could be identified as 2.0.0 or "Grandchildren3" as 2.2.
If you aren't using images on the treeview, you can use the node's ImageIndex property to store a number, which in turn could be an index value into an array storing additional information about the node.