miniui動態合並datagrid列

function onLoad(e) {
            var rows = e.data;
            var sender = e.sender;
            var mergecount = sender.getTotalCount()
            var marges = new Array();
            var num = 1;
            for (var i = 0; i < mergecount; i++) {
                if (i < mergecount - 1) {
                    var k = i + 1 - num;
                    if (rows[i + 1]["ganwname"] == rows[i]["ganwname"]) {
                        num++;

                        //動態添加合並的參數，rowIndex開始行數(0開始)，columnIndex列數(0開始)，rowSpan合並的行數，colSpan合並的列數
                        marges.push({
                            rowIndex : k,
                            columnIndex : 2,
                            rowSpan : num,
                            colSpan : 1
                        }, {
                            rowIndex : k,
                            columnIndex : 3,
                            rowSpan : num,
                            colSpan : 1
                        });

                        sender.mergeCells(marges);
                        continue;
                    }
                    num = 1;
                }
            }
        }