public ActionResult Manage(UserProfile model)
 {
     using (var dbContext = new UsersContext())
     {
         var user = dbContext.UserProfiles.Find(WebSecurity.GetUserId(User.Identity.Name));
         return View(user);
     }
 }
        public ActionResult ChangeProfile(UserProfile model)
        {
            if (ModelState.IsValid)
            {
                using (var dbContext = new UsersContext())
                {
                    var user = dbContext.UserProfiles.Find(WebSecurity.GetUserId(User.Identity.Name));

                    if (model.Name != null)
                    {
                        user.Name = model.Name;
                    }

                    if (model.Email != null)
                    {
                        user.Email = model.Email;
                    }

                    dbContext.SaveChanges();
                    return RedirectToAction("Manage", "Account");
                }
            }
            return View(model);
        }