SMART datagrid v.1 > Classes > GridBase
Return Row object of the location specified by rowIndex parameter. 
Throw an exception if the location is beyond the range.
    $('#deleteRow').click(function () {
        var row = grid.getRow(0);
        if (row) {
            var r = row.dataIndex();
            if (r >= 0) {
                dataSet.deleteRow(r);
            }
        }
    }