Repeater嵌套Repeater的结构：一般写过的都能看懂吧

 cs代码： 

private void RpTypeBind()

        {

//GetQuestionTypeAndCount() 返回一个datatable

            this.rptypelist.DataSource = LiftQuestionCtr.GetQuestionTypeAndCount();                   

            this.rptypelist.DataBind();

        }

               protected void rptypelist_ItemDataBound(object sender, RepeaterItemEventArgs e)

        {

//判断里层repeater处于外层repeater的哪个位置（ AlternatingItemTemplate，FooterTemplate，

//HeaderTemplate，，ItemTemplate，SeparatorTemplate）

            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

            {

                Repeater rep = e.Item.FindControl("rpquestionlist") as Repeater;//找到里层的repeater对象

                DataRowView rowv = (DataRowView)e.Item.DataItem;//找到分类Repeater关联的数据项 

                int typeid = Convert.ToInt32(rowv["qtid"]); //获取填充子类的id 

                rep.DataSource = LiftQuestionCtr.GetSomeQuestionsByTypeid(typeid, 2);

                rep.DataBind();

            }

        }

aspx:

<table border="0" cellpadding="0" cellspacing="0" style="margin-bottom: 5px" width="100%">

    <asp:Repeater runat="server" ID="rptypelist" OnItemDataBound="rptypelist_ItemDataBound">

        <ItemTemplate>

            <tr>

                <td class="fb">

                    &nbsp;&nbsp;<a href="Lists.aspx?Qtid=<%#Eval("qtid") %>"><%#Eval("qtypename") %></a> <span id="askCount_15"

                        class="date2">[<%#Eval("typecount")%>]</span>

                </td>

            </tr>

            <tr>

                <td>

                    <div id="askTop2_15" class="ask_list">

                        <asp:Repeater runat="server" ID="rpquestionlist">

                            <ItemTemplate>

                                <a href="Question.aspx?qid=<%#Eval("liftquestionid")%>">

                                    <%#Eval("questiontitle")%></a><br />

                            </ItemTemplate>

                        </asp:Repeater>

                    </div>

                </td>

            </tr>

        </ItemTemplate>

    </asp:Repeater>

</table>

此方法应该适合于repeater嵌套，datalist嵌套。

（datalist嵌套前不久试过，也可以）