通过parent获得父表格里的行内容时，不会随着父表格里的选中行不同而值改变

<div data-toggle="topjui-layout" data-options="fit:true">
    <div data-options="region:'west',title:'',split:true,border:false,width:'10%',iconCls:'fa fa-sitemap',headerCls:'border_right',bodyCls:'border_right'">
        <!-- treegrid表格 -->
        <table data-toggle="topjui-treegrid"
               data-options="id:'orgnizationDatagrid',
			   idField:'sCode',
			   treeField:'sName',
			   url:'../control.php?f=model/System&m=schoolTree',
			   childGrid:{
			   	   param:'codeSetId:codeSetId,sSchoolCode:sCode',
                   grid:[
                       {type:'datagrid',id:'userDg'},
                   ]
			   }">
            <thead>
            <tr>
                <th data-options="field:'sName',title:'机构名称'"></th>
            </tr>
            </thead>
        </table>
    </div>
    <div data-options="region:'center',iconCls:'icon-reload',title:'',split:true,border:false,bodyCls:'border_left_right'">
        <!-- datagrid表格 -->
        <table data-toggle="topjui-datagrid"
               data-options="id:'userDg',pageSize:50,pageList:[30,50,100,150,200],
                    url:'../control.php?f=model/Enroll&m=enrollList',
                    childTab: [{id:'eastTabs'}],
                    emptyMsg:'无记录'
                    ">
            <thead>
                <tr>
                    <th data-options="field:'uuid',title:'uuid',sortable:true"></th>
                </tr>
            </thead>
        </table>
    </div>
</div>

<!-- 表格工具栏开始 -->
<div id="userDg-toolbar" class="topjui-toolbar"
     data-options="grid:{
           type:'datagrid',
           id:'userDg'
       }">
       
    <a href="javascript:void(0)"  data-toggle="topjui-menubutton"  data-options="menu:'#addSubMenu', btnCls:'topjui-btn-green',hasDownArrow:false,iconCls:'fa fa-plus'">新增</a>
    <div id="addSubMenu" class="topjui-toolbar" style="width:80px;">
        <div data-toggle="topjui-menubutton" data-options="method:'openDialog', extend: '#userDg-toolbar',iconCls: 'fa fa-id-card-o',
            parentGrid:{type:'treegrid',id:'orgnizationDatagrid',param:'sSchoolCode:sCode',unselectedMsg:'请先选中左侧具体机构。'},
            dialog:{iconCls: '',title:'新增(逐个表单)',id:'userAddDialog',
                href:'../control.php?f=view/enroll_view&m=addEdit&sSchoolCode={parent.sCode}',
                buttonsGroup:[
                    {text:'保存',url:'../control.php?f=model/Enroll&m=insertUpdate&no_html=1&sTreeNo=<?=$sTreeNo?>',iconCls:'fa fa-plus',handler:'ajaxForm',btnCls:'topjui-btn-green'}
                ]
            }">逐个表单</div>
        <div data-toggle="topjui-menubutton" data-options="method:'openDialog', extend: '#userDg-toolbar',iconCls: 'fa fa-file-excel-o',
            parentGrid:{type:'treegrid',id:'orgnizationDatagrid',param:'sSchoolCode:sCode',unselectedMsg:'请先选中左侧具体机构。'},
            dialog:{iconCls: '',title:'新增(Excel导入)',id:'userAddDialogExcel',
                href:'../control.php?f=view/enroll_view&m=addEditExcel&no_db=1&sTreeNo=<?=$sTreeNo?>&sSchoolCode={parent.sCode}',
                buttonsGroup:[
                    {text:'保存',url:'../control.php?f=model/Enroll&m=insertUpdateExcel',iconCls:'fa fa-plus',handler:'ajaxForm',btnCls:'topjui-btn-green'}
                ]
            }">Excel导入</div>
    </div>
</div>