关于在tab里加载一个表单并加载数据的问题

    <!-- layout布局 开始 -->
    <div data-toggle="topjui-layout" data-options="fit:true">
        <div data-options="region:'center',title:'',split:true,border:false,headerCls:'border_right',bodyCls:'border_right'">
            <!-- datagrid表格 -->
            <table data-toggle="topjui-datagrid"
                data-options="id: 'dgList',
                fitColumns:true,
                singleSelect:true,
                url: 'hsda.aspx?mod=list',
                childTab: [{id:'southTabs',param:'pkid:pkid'}]">
                <%--url: 'role.aspx?mod=list',onClickRow:myA--%>
                <thead>
                    <tr>
                        <th data-options="field:'pkid',title:'pkid',checkbox:true"></th>
                        <th data-options="field:'fxh',title:'序号',sortable:true"></th>
                        <th data-options="field:'fxkh',title:'胸卡号',sortable:true"></th>
                        <th data-options="field:'fname',title:'姓名',sortable:true"></th>
                        <th data-options="field:'fxb',title:'性别',sortable:true"></th>
                        <th data-options="field:'fnj',title:'能级',sortable:true"></th>
                        <th data-options="field:'fzc',title:'职称',sortable:true"></th>
                        <th data-options="field:'fxl',title:'学历',sortable:true"></th>
                        <th data-options="field:'fcjgzsj',title:'参加工作日期',sortable:true"></th>
                        <th data-options="field:'flysj',title:'来院时间',sortable:true"></th>
                        <th data-options="field:'fks',title:'科室',sortable:true"></th>
                        <th data-options="field:'fbz',title:'编制',sortable:true"></th>
                        <th data-options="field:'fsfzh',title:'身份证号',sortable:true"></th>
                        <th data-options="field:'fzb',title:'组别',sortable:true"></th>
                    </tr>
                </thead>
            </table>
        </div>
        <div data-options="region:'south',iconCls:'icon-reload',title:'',split:true,border:false,bodyCls:'border_right',width:'40%',height:'60%'">
            <div data-toggle="topjui-tabs"
                data-options="id:'southTabs',
                            fit:true,
                            border:false,
                            parentGrid:{
                                type:'datagrid',
                                id:'dgList',
                                param:'pkid:pkid',
                            }">
                <div title="个人情况" 
                    data-options="id:'tab0',
                    iconCls:'fa fa-th',
                    href:'/views/da/hsdaedit.aspx?mod=loadgrqk&pkid={pkid}',

                    ">
                </div>

后台代码:
    public partial class hsdaedit : AdminPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string mod = getReq("mod");
                if (mod == "loadgrqk")
                {
                    string pkid = getReq("pkid");
                    Response.ContentType = "text/plain";
                    oa_org_yhData model = BaseDao.GetModelByPkid<oa_org_yhData>(pkid);
                    Response.Write(model.ToJson());
                    Response.End();
                }