public JsonResult GetNotificationContacts() { var notificationRegisterTime = Session["LastUpdated"] != null?Convert.ToDateTime(Session["LastUpdated"]) : DateTime.Now; NotificationComponent nc = new NotificationComponent(); var list = nc.GetItems(notificationRegisterTime); Session["LastUpdate"] = DateTime.Now; return(new JsonResult { Data = list, JsonRequestBehavior = JsonRequestBehavior.AllowGet }); }