Merge Cells for DataGrid 合并单元格

<script type="text/javascript">
        function onLoadSuccess(data){
            var merges = [{
                index: 2,
                rowspan: 2
            },{
                index: 5,
                rowspan: 2
            },{
                index: 7,
                rowspan: 2
            }];
            for(var i=0; i<merges.length; i++){
                $(this).datagrid(‘mergeCells‘,{
                    index: merges[i].index,
                    field: ‘productid‘,
                    rowspan: merges[i].rowspan
                });
            }
        }
    </script>