public void RegisterNewUser(RegisterModel user, string id)
        {
            var newUser = new User()
            {
                PartitionKey = "ana",
                RowKey = id,
                UserName = user.UserName,
                DisplayName = user.UserName,
                Email = user.Email,
                IdentityProvider = "ana",
            };

            _userRepository.AddOrUpdateEntity(newUser);
        }
        public ActionResult Register(RegisterModel model)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus;
                Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus);

                if (createStatus == MembershipCreateStatus.Success)
                {
                    var user = Membership.GetUser(model.UserName);

                    _userManager.RegisterNewUser(model, user.ProviderUserKey.ToString());

                    IdentityClaim.ClearSession();   
   
                    FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);

                    _userManager.SetCurrentUser(_userManager.GetUser(user.ProviderUserKey.ToString()));

                    return RedirectToAction("Index", "Home");

                }
                else
                {
                    ModelState.AddModelError("", ErrorCodeToString(createStatus));
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }