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2010-08-05 14:41
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ext grid 数据加载成功,却显示不了数据

我的grid从后台加载数据成功,却显示不了数据 !

整体布局是一个viewport,左侧树形,右侧表格,当我单击树形的值时,在表格显示结果。

这是grid 代码:
CurrentDataGrid = function(viewer, config){
this.viewer = viewer;
Ext.apply(this, config);

this.store = new Ext.data.Store({
    proxy: new Ext.data.HttpProxy({
        url: '../currentData/currentData_gridData.jspx'
    }),
    reader: new Ext.data.JsonReader({
        root: 'values',
        totalProperty: 'rows',
        remoteSort: true,
        fields: ["ammeterid", "ammeterno", "measureno", "ammindex", "termno", "equip", "elcplace", "elctype"]
    })
});
this.store.setDefaultSort('ammeterno', "DESC");


this.check_select = new Ext.grid.CheckboxSelectionModel({
    handleMouseDown: Ext.emptyFn
});
this.columns = [new Ext.grid.RowNumberer(), this.check_select, {
    id: 'ammeterid',
    header: "测量点ID",
    dataIndex: 'ammeterid',
    width: 50,
    hidden: true
}, {
    id: 'ammeterno',
    header: "通讯地址",
    dataIndex: 'ammeterno',
    sortable: true,
    width: 100
}, {
    id: 'measureno',
    header: "测量点号",
    dataIndex: 'measureno',
    sortable: true,
    width: 80
}, {
    id: 'ammindex',
    header: "表序号",
    dataIndex: 'ammindex',
    sortable: true,
    width: 50
}, {
    id: 'termno',
    header: "所属终端",
    dataIndex: 'termno',
    sortable: true,
    width: 100
}, {
    id: 'equip',
    header: "关联设备",
    dataIndex: 'equip',
    sortable: true,
    width: 100
}, {
    id: 'elcplace',
    header: "用电场所",
    dataIndex: 'elcplace',
    sortable: true,
    width: 100
}, {
    id: 'elctype',
    header: "用电类型",
    dataIndex: 'elctype',
    sortable: true,
    width: 100
}];
CurrentDataGrid.superclass.constructor.call(this, {
    region: 'center',
    id: 'CurrentDataGridID',
    sm: this.check_select
});

};
Ext.extend(CurrentDataGrid, Ext.grid.GridPanel, {
loadData: function(treeNodeID, selectType){
this.store.baseParams = {
treeValue_ID: treeNodeID,
selectType: selectType
};
this.store.load({
callback: function(r, options, success){
alert(r.length);
if (success) {
alert(r.length);
}
else {
alert("异常!");
}
}
});

}

});

后台返回数据:

{"rows":4,"values": [{"ammeterid":10,"ammeterno":"002084000075","measureno":112,"ammindex":12,"termno":"99999999","equip":"b- 12(一楼厂房)","elcplace":"照明用电场所","elctype":"办公照明用电"}, {"ammeterid":12,"ammeterno":"002084000066","measureno":114,"ammindex":14,"termno":"99999999","equip":"b- 14(四楼照明区)","elcplace":"照明用电场所","elctype":"办公照明用电"}, {"ammeterid":13,"ammeterno":"002084000067","measureno":115,"ammindex":15,"termno":"99999999","equip":"b- 15(三楼照明区)","elcplace":"照明用电场所","elctype":"办公照明用电"}, {"ammeterid":14,"ammeterno":"002084000069","measureno":116,"ammindex":16,"termno":"99999999","equip":"b- 16(五楼照明区)","elcplace":"照明用电场所","elctype":"办公照明用电"}]}

在IE和FF里都不显示数据,也不报错!用firebug调试了一下,可以看到从后台返回的数据,如下图所示

[img]http://dl.iteye.com/upload/attachment/288630/01887e97-8d5a-3f65-b16c-ee3117bcd3ec.jpg[/img]

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