Bug 129886 Delect a column contain the marge row which contain some item, Error message pop up
Details: Delect a column contain the marge row which contain some item, Error message pop up Setp: 1.New a library and add a 3*3 grid 2.Insert a label in cell(1,1) 3.Marge the cell of (1,1) and (1,2) 4.Delete column 1. Actual result: An error message pop up
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableEditPart.java
else
			{
				getTableAdapter( ).deleteRowInSlotHandle( id );
			}
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
	}
	/**
	 * Inserts group in table.
	 */
	public boolean insertGroup( )
	{
		return UIUtil.createGroup( getTableAdapter( ).getHandle( ) );
	}
	/**
	 * Inserts group in table.
	 * 
	 * @param position
	 *            insert position
	 */
	public boolean insertGroup( int position )
	{
		return UIUtil.createGroup( getTableAdapter( ).getHandle( ), position );
	}
	/**
	 * Removes group in table
	 *