Extjs grid 合计

1、直接在客户端统计，动态的修改Grid

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2、代码如下

buttons: [{text: '查询',handler: function() {var a = Ext.getCmp('wholesale-query-form').form.getValues();var s = Ext.StoreMgr.lookup('wholesaleReportStore');s.load({params:a,callback:function(r,options,success){  if(!success){alert("数据加载失败！");}else{//合计行var sumc = 0; //数量合计var sumw = 0; //重量合计var suma = 0; //总金额合计var avgp = 0; //平均价合计var wgrid = Ext.getCmp("wholesale-report-grid")wgrid.store.each(function(record){  sumc += Number(record.data.scount);sumw += Number(record.data.sweight);suma += Number(record.data.samount);    });avgp = (suma/sumw).toFixed(2);var n = wgrid.getStore().getCount();// 获得总行数   var p = new Ext.data.Record({salerName: '总计:',  scount:sumc,sweight:sumw,samount:suma,aprice:avgp    });  wgrid.store.insert(n, p);// 插入到最后一行 }}});}}]

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