Neither is supported by the control. You'll have to create your own version of the control, inheriting from TreeView, then supply the drawing code to draw the TreeView with the transparent background or background image. You'll have to Google for "treeview transparent background" for any examples. I don't have any. Or take the easy route and buy a packaged control that includes the functionality you're looking for. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome