public async Task<ActionResult> AddPhoneNumber(AddPhoneNumberViewModel model)
 {
     if (!ModelState.IsValid)
     {
         return View(model);
     }
     // Generate the token and send it
     var code = await UserManager.GenerateChangePhoneNumberTokenAsync(User.Identity.GetUserId(), model.Number);
     if (UserManager.SmsService != null)
     {
         var message = new IdentityMessage
         {
             Destination = model.Number,
             Body = "Your security code is: " + code
         };
         await UserManager.SmsService.SendAsync(message);
     }
     return RedirectToAction("VerifyPhoneNumber", new { PhoneNumber = model.Number });
 }
 public async Task<ActionResult> AddPhoneNumber(AddPhoneNumberViewModel model)
 {
     //if (!ModelState.IsValid)
     //{
     //    return View(model);
     //}
     //// Generate the token and send it
     //var code = await UserManager.GenerateChangePhoneNumberTokenAsync(User.Identity.GetUserId(), model.Number);
     //if (UserManager.SmsService != null)
     //{
     //    var message = new IdentityMessage
     //    {
     //        Destination = model.Number,
     //        Body = "Your security code is: " + code
     //    };
     //    await UserManager.SmsService.SendAsync(message);
     //}
     //return RedirectToAction("VerifyPhoneNumber", new { PhoneNumber = model.Number });
     throw new NotImplementedException();
 }