I am trying to create groups(with container controls) in the explorerbar(with the style as listbar) dynamically at run-time and am having a lot of problems. Each group contains an ultra-tree within its containercontrol. This VB example I found shows how I'm creating the container controls and then adding the Tree's to the container controls within the ExplorerBar Groups(although I'm using C#):
Dim uccContainer As New Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarContainerControl
Found the problem. Basically it was just a referencing issue..Sorry for any confusion...