Object currDataSet = ( (DataSetItemModel) array[i] ).getParent( );
Object currDataSet = ( (ResultSetColumnHandle) array[i] ).getElementHandle( );
	protected static boolean checkSameDataSetInMultiColumns( Object[] array )	{		if ( array == null )			return false;		Object dataSet = null;		for ( int i = 0; i < array.length; i++ )		{			if ( array[i] instanceof DataSetItemModel )			{				Object currDataSet = ( (DataSetItemModel) array[i] ).getParent( );				if ( currDataSet == null )				{					return false;				}				if ( dataSet == null )				{					dataSet = currDataSet;				}				else				{					if ( dataSet != currDataSet )					{						return false;					}				}			}		}		return true;	}