easy ui 下拉框绑定数据select控件

<tr>
                <td>公司等级:</td>
                <td>
                    <select id="CompanyDegree" style="width: 150px;">
                    </select></td>
                <td>上级或同级:</td>
                <td>
                    <input type="text" id="RelCompanyName" style="width: 150px;" />
                    <a id="btn_SearchCompany" href="#" class="easyui-linkbutton" data-options="iconCls:‘icon-search‘">选择公司</a>  </td>
            </tr>

  //给公司等级绑定数据
            $(‘#CompanyDegree‘).combobox({
                url: ‘Handler/CompanyDegreeHandler.ashx?Func=getcompanydegree&format=list‘,
                editable: false, //不可编辑状态
                cache: false,
                //panelHeight: ‘auto‘,//自动高度适合
                panelHeight: "300",
                valueField: ‘CDId‘,
                textField: ‘CDName‘
            });