The Cascading Style Sheet class to be applied to the even number grid rows.
'even_row'. This is the default class applied to even numbered rows (that is, 2nd, 4th row etc.) in the grid and is provided with the all shipped cascading styles sheets.
Any valid class name selected from the current Cascading Style Sheet, in single quotes. A list of available classes can be selected from by clicking the corresponding dropdown button in the property sheet.