Repeater控件嵌套使用

前台页面代码：

<ul>
            <asp:Repeater ID="rptClass1" runat="server" OnItemDataBound=" rptClass1_ItemDataBound">
                <ItemTemplate>
                    <li><a href="ProtectList.aspx?ClassID=<%#Eval("ID") %>">
                        <%#Eval("ClassName") %></a>
                        <ul>
                            <asp:Repeater ID="rptClass2" runat="server">
                                <ItemTemplate>
                                    <li><a href="ProtectList.aspx?ClassID=<%#Eval("ID") %>">
                                        <%#Eval("ClassName") %></a></li>
                                </ItemTemplate>
                            </asp:Repeater>
                        </ul>
                    </li>
                </ItemTemplate>
            </asp:Repeater>
        </ul>

后台页面代码 ：

public void GetClass()//加载产品一级分类
        {
            DataTable dt = bllClass.GetDataTable(0, "", "ParentID=13 and IsView=1", "Oid");
            this.rptClass1.DataSource = dt.DefaultView;
            this.rptClass1.DataBind();

            dt.Dispose();
        }

        protected void rptClass1_ItemDataBound(object sender, RepeaterItemEventArgs e)//添加二级分类
        {
            //  判断里层的repeater处于哪个外层repeater的哪个位置
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rptClass = e.Item.FindControl("rptClass") as Repeater; //    查找内层Repeater并转换到相应类型
                DataRowView drv = (DataRowView)e.Item.DataItem;   //   找到外层Repeater关联的数据项

                long id = long.Parse(drv["ID"].ToString()); //  取得pID
                TianDao.BLL.BusinessTD_Base_Class bllClass2 = new TianDao.BLL.BusinessTD_Base_Class();
                DataTable dt = bllClass2.GetDataTable(0, "", "ParentID=" + id + " and IsView=1", "Oid");

                rptClass.DataSource = dt.DefaultView;
                rptClass.DataBind();
                dt.Dispose();
            }
        }
    }