I have a Pane that pops out from the left side of my app. I want it to have two tabbed Panes. I've accomplished this by placing a Docking Control on another form; frmEdit. frmEdit contains a PropertyGrid. When one of the tabs is selected from frmEdit I catch the Action event and then populate the grid control. The problem is that the grid control never populates --even though I receive no error and walking through the code reveals no issue. Is there some reason why the grid would fail to populate? Is there something I should call to refresh it? I've modeled as closely as I can the Tab Manager example. I could find no example that matches what I'm trying to do.