public override void GetSize (Widget widget, ref Gdk.Rectangle cell_area, out int x_offset, out int y_offset, out int width, out int height) { int text_x, text_y, text_w, text_h; base.GetSize (widget, ref cell_area, out text_x, out text_y, out text_w, out text_h); x_offset = 0; y_offset = 0; if (!(widget is TreeView)) { width = 200; } else { width = 0; } height = (int)Math.Max (RowHeight, text_h); }