ASP.NET(C#)Repeater嵌套实例

<asp:Repeater ID="techlist" runat="server" OnItemDataBound="techlist_ItemCommand" EnableViewState="false">
<ItemTemplate>
   <div id="ad3"><img src="images/flash_pic1.jpg" width="898" height="90" /></div>     
         <%}%>
 <div id="text1" class="bigContent">
  <div id="title" class="title">
   <div><a href="List.aspx?id=<%#Eval("id") %>" title="<%#Eval("title") %>"><%#Eval("title") %></a></div>
  </div>
  <div id="text">
   <ul>
   <asp:Repeater ID="newslist" runat="server" EnableViewState="false"><ItemTemplate>
    <li><span class="classxl"><a href="List.aspx?xid=<%#Eval("TypeID") %>" title="<%#Eval("aname") %>"><%#Eval("aname")%></a></span><span class="classx2"><a href="<%#Eval("linkurl") %>" target="_blank" title="<%#Eval("title") %>"><%#MyData.MaxLength(Eval("title").ToString(), 30)%></a></span></li>
             </ItemTemplate></asp:Repeater>
   </ul>
   <div><a href="List.aspx?id=<%#Eval("id") %>" title="<%#Eval("title") %>">更多>></a></div>
  </div>
 </div>
</ItemTemplate>
</asp:Repeater>

 void bindlist()
    {
        Model.classT typemodel = new classT();
        BLL.classL typebll = new classL();
        typemodel.mid = 6;
        DataTable dt = typebll.dt(typemodel);
        techlist.DataSource = dt;
        techlist.DataBind();
    }
    protected void techlist_ItemCommand(object source, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            Repeater newslist = (Repeater)e.Item.FindControl("newslist");
            //找到分类Repeater关联的数据项
            DataRowView rowv = (DataRowView)e.Item.DataItem;
            //提取分类ID
            int CategorieId = Convert.ToInt32(rowv["id"]);
            //根据分类ID查询该分类下的产品，并绑定产品Repeater
            Model.bb_tech techmodel = new bb_tech();
            BLL.bb_techB techbll = new bb_techB();
            techmodel.TypeID = CategorieId;
            DataTable dt = techbll.dttech(techmodel);
            newslist.DataSource = dt;
            newslist.DataBind();
        }      
    }

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