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
}
	public void elementChanged( DesignElementHandle focus, NotificationEvent ev )
	{
		if ( !isActive( ) )
		{
			return;
		}
		switch ( ev.getEventType( ) )
		{
			case NotificationEvent.CONTENT_EVENT :
			{
				markDirty( true );
				if ( focus instanceof TableHandle
						|| focus instanceof TableGroupHandle )
				{
					addListenerToChildren( );
				}
				refreshChildren( );
				refreshVisuals( );
				if ( ( (ContentEvent) ev ).getAction( ) == ContentEvent.REMOVE )
				{
					
					reselectTable(); 
				}
				break;
			}
			case NotificationEvent.PROPERTY_EVENT :
			{
				markDirty( true );
				reLayout( );