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
* @author Liu sanyong
	 * 
	 * @version 1.0 2005.4.22
	 * 
	 * @param relativePos
	 *            The direction to indicate inserting rows above or below.
	 * @param rowNumbers
	 *            The row numbers of the origin selected rows.
	 */
	public void insertRows( final int relativePos, final int[] rowNumbers )
	{
		int rowCount = rowNumbers.length;
		try
		{
			if ( relativePos < 0 )
			{ 
				getTableAdapter( ).insertRows( -rowCount, rowNumbers[0] );
			}
			else
			{
				getTableAdapter( ).insertRows( rowCount,
						rowNumbers[rowCount - 1] );
			}
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
		
	}