easyui的datagrid显示或隐藏列

1.根据下拉框选择要显示的列

   html:<input id="AirFactorMultiselect" name="factor" class="easyui-combotree" data-options="onChange:factorOnSelect" style="width:130px">

   javascript:

           ///因子切换
    function factorOnSelect(nv, ov) {
        if (data != "" && data != null && data != undefined) {
            var all = ["PM10", "PM25", "SO2", "NO2", "CO", "O3"];
            $.each(all, function (lx, obj) {
                dg.datagrid('hideColumn', obj);
            });
            $.each(nv, function (lx, obj) {
                if (obj != 'all') {
                    dg.datagrid('showColumn', obj).datagrid('autoSizeColumn', obj);
                }
            });
        }
    }

2.发现AQI不受影响

   修改var all = ["PM10", "PM25", "SO2", "NO2", "CO", "O3"];

   为：var all = ["AQI", "PM10", "PM25", "SO2", "NO2", "CO", "O3"];（要和页面上因子下拉框里的顺序保持一致）