Expanding Cell containing TreeView Control

I have a grid in which I am placing a TreeView in a cell. Since the TreeView is the only item to be displayed in it''s particular row, I am able to set the the RowHeight for the row it is in to accomodate the height of the row. Now I need a way to handle displaying the entire width of the TreeView, however I need to do it without making the column wider. I know that you can make text cells "spill" into the next column by setting the cell float and flood properties, but I haven''t been able to make this work for a "Control" cell. Anybody know how to do this?

If the only thing in that row is your TreeView, then you can try using a covered cell to see if this will do what you need. //cover row 3 gridControl1.CoveredRanges.Add(GridRangeInfo.Cells(3, 1, 3, gridControl1.ColCount));