public ActionResult Tip()
 {
     ViewBag.UnreadCount = SiteMailManager.GetReceiveBox(WebSecurity.CurrentUserName).Where(x => !x.IsRead).Count();
     return(PartialView());
 }
        public ActionResult ReceiveBox()
        {
            var mails = SiteMailManager.GetReceiveBox(WebSecurity.CurrentUserName);

            return(View(mails));
        }