DateSet取出一行行数据显示在Repeater中

        /// <summary>
        /// 绑定选择题列表
        /// </summary>
        private void BindSelectQuestionList() {
            ITestDal testDal = Factory.CreateTestDal();
            string filter = GetFilter();
            DataSet ds = testDal.Get_R_QuesAndAnswer(filter);
            hid_r_count.Value = ds.Tables[0].Rows.Count.ToString();
           //遍历DataSet中默认第一个表中的行
            //foreach (DataRow dr in ds.Tables[0].Rows)
            //{
            //    //获取行中某个字段（列）的数据
            //    this.ques_repeater.DataSource=(dr.Table.Rows.ToString());
            //    this.ques_repeater.DataBind();
            //}

            this.ques_repeater.DataSource = ds;
            this.ques_repeater.DataBind();
        }
前台界面显示：
<asp:Repeater ID="ques_repeater" runat="server" 
    onitemdatabound="ques_repeater_ItemDataBound">
    <HeaderTemplate><ul class="content"></HeaderTemplate>
    <ItemTemplate>
        <li>
            <div class="tg" style="font-size:13px; font-family:宋体">
                <ul class="tg_1">
                   <%#Eval("num")%>、 <%#Eval("question")%>
                </ul>
                <ul class="tg_2">