Repeater双层嵌套

前台代码：

 <div>
        <asp:Repeater ID="rptOne" runat="server" OnItemDataBound="rptOne_ItemDataBound" >
            <ItemTemplate>
                <div >
                    <%# Eval("DepartName") %>
                    <div>
                        <asp:Repeater ID="rptTwo" runat="server">
                            <ItemTemplate>
                                <%# Eval("StaffName") %>
                            </ItemTemplate>
                        </asp:Repeater>
                    </div>
                </div>
            </ItemTemplate>
        </asp:Repeater>
    </div>

后台代码：

public partial class WebForm1 : System.Web.UI.Page
    {
        StaffInfoBLL sbll = new StaffInfoBLL();
        DepartmentInfoBLL dbll = new DepartmentInfoBLL();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                this.rptOne.DataSource = dbll.GetAll();
                Session["DepartAll"] = sbll.GetAll();
                this.rptOne.DataBind();
            }
        }

        protected void rptOne_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rptWo = e.Item.FindControl("rptTwo") as Repeater;
                DepartmentInfo d = e.Item.DataItem as DepartmentInfo;
                IList<StaffInfo> list = Session["DepartAll"] as IList<StaffInfo>;
                if (list != null)
                {
                    rptWo.DataSource = list.Where(p=>p.DepartmentInfo.DepartId==d.DepartId);
                    rptWo.DataBind();
                }
            }
        }
    }