Bug 210609 [Smoke]Crosstab is failed to preview in runtime
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/AggDataDropAdapter.java
else if ( target instanceof ListBandEditPart )
			{
				ListBandProxy cellHandle = (ListBandProxy) ( (ListBandEditPart) target ).getModel( );
				cellHandle.getSlotHandle( ).add( dataHandle );
			}
			DataColumnBindingDialog dialog = new DataColumnBindingDialog( true );
			dialog.setInput( dataHandle );
			dialog.setAggreate( true );
			if ( dialog.open( ) == Window.OK )
			{
				dataHandle.setResultSetColumn( dialog.getBindingColumn( )
						.getName( ) );
				SessionHandleAdapter.getInstance( ).getCommandStack( ).commit( );
			}
			else
			{
				SessionHandleAdapter.getInstance( )
						.getCommandStack( )
						.rollback( );
			}
		}
		catch ( Exception e )
		{
			SessionHandleAdapter.getInstance( ).getCommandStack( ).rollback( );
			ExceptionHandler.handle( e );
		}
		return true;
	}
}