easyUI datagrid 对本地数据进行排序

   //拼接表格
      $('#DataGrid').datagrid({
       striped: true,
       nowrap:false,
       fitColumns:true,
       autoRowHeight:false,
       sortName: dataGridzhibiao,
       sortOrder: 'asc',
       remoteSort: false,//定义是否通过远程服务器对数据排序。(默认为true) 一定改为false
       columns:[[
          {field:'ROLE_NAME',title:'任务名称',width:180,height:100,
           //添加超级链
            formatter:function(value,rowData,rowIndex){
              return "<a href='javascript:void(0);' onclick='addTab(\""+value+"\",\""+rowIndex+"\");'>"+value+"</a>"; 
            }
          },
          {field:dataGridzhibiao,title:zhibiaoname,width:190,height:100,sortable:true},
          {field:'STEP_ID',title:'步骤',width:190,height:100},
          {field:'RIGHTNUM',title:'有效监测(次)',width:190,height:100},
          {field:'ERRNUM',title:'错误次数(次)',width:190,height:100,sortable:true},
          {field:'USERABLE',title:'可  用   性(%)',width:190,height:100}
         ]]
      });