In the ultraexplorerbar you have several groups, when those groups take more space than available they will fill a bar at the bottom and then they will fill a list as you can see in the image.
The problem I have is that the groups in the list can not be activated. I get the error: "ActiveGroup cannot be set - specified Group cannot be activated! (Group may be disabled or its header may not be visible)"
Even when the code is:
ultraExplorerBar1.Enabled = true; ultraExplorerBar1.GroupSettings.HeaderVisible = Infragistics.Win.DefaultableBoolean.True; ultraExplorerBar1.ActiveGroup = group;
The code works fine for the other groups that are not in the extra list.
now with image...
In OutlookNavigationPane style, activating a group basically means to give it the keyboard focus, which it can't do if no physical representations of the group are present in the user interface.
I believe what you want to do is select the group, so try setting the SelectedGroup property rather than the ActiveGroup property.
well, that explains a lot...
thanks :D