easyui 自动动态合并单元格

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onLoadSuccess : function(data) {
        if (data.rows.length > 0) {
                    //调用mergeCellsByField()合并单元格
             mergeCellsByField("grid","supply_fullname,in_supply,in_no,in_sales");
                }
            }





function mergeCellsByField(tableID, colList) {
    //alert(tableID+"  "+colList);
    var ColArray = colList.split(",");
    var tTable = $("#" + tableID);
    var TableRowCnts = tTable.datagrid("getRows").length;
    var tmpA;
    var tmpB;
    var PerTxt = "";
    var CurTxt = "";
    var alertStr = "";
    for (j = ColArray.length - 1; j >= 0; j--) {
        PerTxt = "";
        tmpA = 1;
        tmpB = 0;

        for (i = 0; i <= TableRowCnts; i++) {
            if (i == TableRowCnts) {
                CurTxt = "";
            }
            else {
                CurTxt = tTable.datagrid("getRows")[i][ColArray[j]];
            }
            if (PerTxt == CurTxt) {
                tmpA += 1;
            }
            else {
                tmpB += tmpA;
                
                tTable.datagrid("mergeCells", {
                    index: i - tmpA,
                    field: ColArray[j],　　//合并字段
                    rowspan: tmpA,
                    colspan: null
                });
                tTable.datagrid("mergeCells", { //根据ColArray[j]进行合并
                    index: i - tmpA,
                    field: "Ideparture",
                    rowspan: tmpA,
                    colspan: null
                });
               
                tmpA = 1;
            }
            PerTxt = CurTxt;
        }
    }
}