$rowOptions public property
The HTML attributes for the table body rows. This can be either an array specifying the common HTML attributes for all body rows, or an anonymous function that returns an array of the HTML attributes. The anonymous function will be called once for every data model returned by $dataProvider. It should have the following signature: function ($model, $key, $index, $grid)
$model: the current data model being rendered
$key: the key value associated with the current