如何在写session.Abandon（）后在下一页上检索会话值？

Question

在我的按钮点击事件中，我写了

  //delete session cookie
            Session.Abandon();
            Response.Cookies.Add(new HttpCookie("ASP.NET_SessionId", ""));
            Request.Cookies.Get("ASP.NET_SessionId");
            //create new sessionID
            SessionIDManager manager = new SessionIDManager();
            manager.RemoveSessionID(System.Web.HttpContext.Current);
            var newId = manager.CreateSessionID(System.Web.HttpContext.Current);
            var isRedirected = true;
            var isAdded = true;
            manager.SaveSessionID(System.Web.HttpContext.Current, newId, out isRedirected, out isAdded);
           Session["id"]=21;
      Response.Redirect("cc.aspx");

在cc.aspx页面加载上我写的是这样的，

int sss_id = (int)Session["id"];

但是我将sss_id的值设为null而不是geeting'21'。请帮忙