I have an ExplorerBar that has a few groups. Only one group is expanded at one time. Each group has a listview in it. I would like to drag from one listview in a group to another listview in another group. How do I get the target group to expand so that I can see the target listview?
The control exposes a 'GroupFromPoint' method, which you can use in (for example) the DragOver event to get the group at the current cursor position, if any (note that the method takes client coordinates, not screen coordinates). Once you have a reference to a group, you can set its Expanded property.