else if ( element instanceof DataSetParameterHandle ) { return ( (DataSetParameterHandle) element ).getName( ); }
	public String getDisplayText( Object element )	{		if ( element instanceof DataSetHandle )		{			return ( (DataSetHandle) element ).getName( );		}		else if ( element instanceof ResultSetColumnHandle )		{			return ( (ResultSetColumnHandle) element ).getColumnName( );		}		return super.getDisplayText( element );	}