Repeater嵌套绑定

 <div class="list1">
                <asp:Repeater ID="rptlist" runat="server" OnItemDataBound="rptlist_ItemDataBound">
                    <ItemTemplate>
                        <div class="titlebox">
                            <div class="title">
                                <h1><%# Eval("title") %></h1>
                            </div>
                            <ul>
                                <asp:Repeater ID="rptItem" runat="server">
                                    <ItemTemplate>
                                        <li><a href='/roomShow.aspx?cid=<%#Eval("roomid") %>'><%# Eval("title") %></a></li>

                                    </ItemTemplate>
                                    <FooterTemplate>
                                        <div class="clear"></div>
                                    </FooterTemplate>
                                </asp:Repeater>
                            </ul>
                        </div>
                    </ItemTemplate>

                </asp:Repeater>

            </div>

     protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {

                DataSet ds = new BLL.rooms().GetList("parentid=0");
                DataTable dt = ds.Tables[0];

                this.rptlist.DataSource = ds.Tables[0];
                this.rptlist.DataBind();
            }
        }

        protected void rptlist_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rep = e.Item.FindControl("rptItem") as Repeater;//找到里层的repeater对象
                DataRowView rowv = (DataRowView)e.Item.DataItem;
                String pid = rowv["roomid"].ToString();

             
                DataSet ds = new BLL.rooms().GetList(" parentid=" + pid);
                rep.DataSource = ds.Tables[0];
                rep.DataBind();
            }
        }