调试易

点连接左侧找Footer Rows in DataGrid  自己看吧

showFooter: true
而且easyui自带那种统计显示，只要后台传对参数就好了

我加了 也不行呢  
我和datagrid 是在界面画好了 然后加进去的 不知道是什么原因呢
你说神奇不神奇
我是这样加载datagrid的 数据

这问题找了一天了呢  我试过好几种方法1.扩展合计方法$('#tableData').datagrid({
title: finalTitle,
url: CTX + '/board/LTB24HourOutBoard/!queryData',
showFooter: true,
queryParams: {group:group,mailCategory: $("#mailCategory").combobox("getValue"), mechanism: " ",
        startDate: $("#startDate").datebox("getValue"),
        endDate: $("#endDate").datebox("getValue"), scopeLevel:scopeLevel,
        areaCode:code,mailDate:"" },
  onLoadSuccess: function (data) {
            controlHref();
      if(data.total>0){
       alert("sum");
            $('#tableData').datagrid('statistics');
//合计扩展
 $.extend($.fn.datagrid.methods,
    {
        statistics: function (jq) {
            var opt = $(jq).datagrid('options').columns;
            var rows = $(jq).datagrid("getRows");
            var footer = new Array();
            footer['sum'] = "";
            for (var i = 0; i < opt[0].length; i++) {
                if (opt[0][i].sum) {
                    footer['sum'] = footer['sum'] + sum(opt[0][i].field, 1) + ',';
                }
            }
            var footerObj = new Array();
            if (footer['sum'] != "") {
                var tmp = '{' + footer['sum'].substring(0, footer['sum'].length - 1) + "}";
                var obj = eval('(' + tmp + ')');
                if (obj[opt[0][0].field] == undefined) {
                    footer['sum'] += '"' + opt[0][0].field + '":"<b>合计:</b>"';                     //第0列显示为合计
                    obj = eval('({' + footer['sum'] + '})');
                }
                else {
                    obj[opt[0][0].field] = "<b>合计:</b>" + obj[opt[0][0].field];
                }
                footerObj.push(obj);
            }
            if (footerObj.length > 0) { $(jq).datagrid('reloadFooter', footerObj); }
            function sum(filed) {
                var sumNum = 0;
                var str = "";
                for (var i = 0; i < rows.length; i++) {
                    var num = rows[i][filed];
                    sumNum += Number(num);
                }
            return '"' + filed + '":"' + sumNum.toFixed(2) + '"';
            }
        }
    }); 
2.然后我又在官方api 上找到  
var rows = $('#dg').datagrid('getFooterRows');
rows[0]['name'] = 'new name';
rows[0]['salary'] = 60000;
$('#dg').datagrid('reloadFooter');
第二种方法我得不到rows  这是不是说没有footer  难道在初始化的时候要给footer 赋值吗  具体怎么搞 要死啦 要死啦 

你用第三种吧 需要添加数据footer{"total":28,"rows":[
{"productid":"FI-SW-01","unitcost":10.00,"status":"P","listprice":36.50,"attr1":"Large","itemid":"EST-1"},
{"productid":"K9-DL-01","unitcost":12.00,"status":"P","listprice":18.50,"attr1":"Spotted Adult Female","itemid":"EST-10"},
{"productid":"RP-SN-01","unitcost":12.00,"status":"P","listprice":28.50,"attr1":"Venomless","itemid":"EST-11"},
{"productid":"RP-SN-01","unitcost":12.00,"status":"P","listprice":26.50,"attr1":"Rattleless","itemid":"EST-12"},
{"productid":"RP-LI-02","unitcost":12.00,"status":"P","listprice":35.50,"attr1":"Green Adult","itemid":"EST-13"},
{"productid":"FL-DSH-01","unitcost":12.00,"status":"P","listprice":158.50,"attr1":"Tailless","itemid":"EST-14"},
{"productid":"FL-DSH-01","unitcost":12.00,"status":"P","listprice":83.50,"attr1":"With tail","itemid":"EST-15"},
{"productid":"FL-DLH-02","unitcost":12.00,"status":"P","listprice":63.50,"attr1":"Adult Female","itemid":"EST-16"},
{"productid":"FL-DLH-02","unitcost":12.00,"status":"P","listprice":89.50,"attr1":"Adult Male","itemid":"EST-17"},
{"productid":"AV-CB-01","unitcost":92.00,"status":"P","listprice":63.50,"attr1":"Adult Male","itemid":"EST-18"}
],"footer":[
{"unitcost":19.80,"listprice":60.40,"productid":"Average:"},
{"unitcost":198.00,"listprice":604.00,"productid":"Total:"}
]}

可是我的footer  数据 要怎么在前台设置

$('#tableData').datagrid({
    loadFilter: function(data){  
                //在这里计算，结果是json格式的对象，放到下面XXX
                var value = {  
                        total:data.total,  
                        rows:data.rows,
                        footer:XXX
                }; 
        return value;
    }
});