The exact answer to your question is no, I don't know of a data aware
control.  The real reason for this message is to suggest a solution.
I have been using a tree view control in an app that I am writing that
is derived from a "MAGIC" table.  This table lists every item in the
tree by Key, Parent, Text, Image Index, etc...  Although this table
may grow huge, the hierarchical nature makes database searches a user
requested action.  My personal (unreasearched hope is that the
control's tolerance is high enough to handle a substantial amount of
items.