Gets the bounding rectangle occupied by the empty rows.
A Rectangle structure which represents the bounding rectangle occupied by the empty rows.
The Tree List’s empty area includes the area occupied by the empty rows which is located under the last node (see the image below). Its bounding rectangle is returned by the CustomDrawEmptyAreaEventArgs.EmptyRows property.
The region occupied by the empty space is represented by the CustomDrawEmptyAreaEventArgs.EmptyAreaRegion property.