Repeater嵌套（灵活的）

页面代码

<form id="form1" runat="server">
    <asp:Repeater ID="rptCategories" runat="server" OnItemCommand="rptCategories_ItemCommand">
        <HeaderTemplate>
            <table width="100%" border="1" cellspacing="0" cellpadding="0">
        </HeaderTemplate>
        <ItemTemplate>
            <!--分类名称-->
            <tr>
                <th>
                    <asp:LinkButton ID="LinkButton1" CommandName='<%#DataBinder.Eval(Container.DataItem, "ID") %>'
                        runat="server"><%#DataBinder.Eval(Container.DataItem, "ID")%></asp:LinkButton>
                        <input type="button" value="收" onclick="aa()" />
                </th>
                <th>
                   <label runat="server" id="lbl"> <%# DataBinder.Eval(Container.DataItem, "loginid")%></label>
                </th>
            </tr>
            <!--分类下的产品-->
            <asp:Repeater ID="rptProduct" runat="server">
                <ItemTemplate>
                    <tr>
                        <td>
                            <%# DataBinder.Eval(Container.DataItem, "Course")%>
                        </td>
                        <td>
                            <%# DataBinder.Eval(Container.DataItem, "Score")%>
                        </td>
                    </tr>
                </ItemTemplate>
            </asp:Repeater>
        </ItemTemplate>
        <FooterTemplate>
            </table>
        </FooterTemplate>
    </asp:Repeater>
    </form>

根据点击Repeater上的按钮，在这行下方嵌套Repeater

 protected void rptCategories_ItemCommand(object source, RepeaterCommandEventArgs e)
        {
           
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rptProduct = (Repeater)e.Item.FindControl("rptProduct");
                //找到分类Repeater关联的数据项 
                DataRowView rowv = (DataRowView)e.Item.DataItem;
                var a = e.Item.Controls[0];
                //提取分类ID 
                string id = e.CommandName;
                //string CategorieId = Convert.ToString(rowv["Name"]);
                //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 
                List<Student> list = new List<Student>();
                Student stu = new Student() { Course = "语文", Score = 135 };
                list.Add(stu);
                list.Add(new Student() { Course = "数学", Score = 141 });
                //绑定嵌套数据
                rptProduct.DataSource = list;
                rptProduct.DataBind();
            }
        }

绑定原数据

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (!IsPostBack)
                {
                    List<Student> list = new List<Student>();
                    Student stu = new Student() { ID = 100, Name = "赵六", Sex = "男", Phone = "15889898998" };
                    list.Add(stu);
                    list.Add(new Student() { ID = 102, Name = "王五", Sex = "男", Phone = "136*******8382" });
                    list.Add(new Student() { ID = 103, Name = "卡琳", Sex = "女", Phone = "138*******9083" });
                    list.Add(new Student() { ID = 105, Name = "王五", Sex = "男", Phone = "157*******7002" });

                    DataTable dt = new DataTable();
                    DataSet ds = GetDataSet("select * from profile");

                    rptCategories.DataSource = (DataTable)ds.Tables[0];
                    rptCategories.DataBind();
                }
            }
        }