【代awptony发帖】Ext combox 数据不显示 -----MADE,哥要崩溃了,搞了一下午还是没数据!!
不小心删除了awptony用户发的帖子，对不起啊。。这个帖子我代awptony重新发过。。

//服务器返回json 数据
{"totalCount":8,"list":[{"emps":1,"roleid":1,"roleName":"超级管理员"},{"emps":1,"roleid":2,"roleName":"管理员"},{"emps":2,"roleid":3,"roleName":"普通员工"},{"emps":0,"roleid":4,"roleName":"商户"},{"emps":1,"roleid":5,"roleName":"aa"},{"emps":0,"roleid":16,"roleName":"321"},{"emps":0,"roleid":17,"roleName":"zhidan"},{"emps":0,"roleid":18,"roleName":"zhan"}]}

[解决办法]
引用:
以下4.0测试正确。。。注意json对象最后的一个“,”要去掉，要不IE下回出错。。
    Ext.onReady(function () {

        var cityStore = new Ext.data.JsonStore({
            proxy: new Ext.data.HttpProxy({
                type: 'ajax',
                url: 'data.txt',
                method: 'get', 
 
                reader: { totalProperty: 'totalCount', root: 'list' }
            }),
            fields: [{ name: 'rId', mapping: 'roleid' }, { name: 'rName', mapping: 'roleName'}]
        });

        var cityCom = new Ext.form.ComboBox({

            //                colspan : 2,
            fieldLabel: '日志类型',
            store: cityStore,
            displayField: 'rName',
            valueField: 'rId',
            //                mode : 'local',
            triggerAction: 'all',
            width: 400,
            height: 400,
            emptyText: '请选择 .... '////////////,
        });

        cityStore.load();
        //logDataType.load();
        var mainPanel = new Ext.Panel({
            renderTo: document.body,
            //        border:false,
            width: 700,
            height: 700,
            items: [cityCom]//////////,
        })
    });


4.0的
[解决办法]
搞定了？

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