kendoui表格grid列锁定及内容过多滚动

grid锁住列
locked: true,

grid列里面的内容过多滚动显示
{
                title: '<@spring.message "trp.tst.bill.testitem"/>',
                width: 170,
                template: function (rowdata) {
                    var item = "";
                    $.each(rowdata.testItemList, function (i, v) {
                        item = item + "<li style='list-style-type:lower-alpha'>" + v.testItemName + "</li>";
                    });
                    return "<div style='overflow-y:auto;max-height:60px;'>" + item + "</div>";
                }
            },