ASPMvcFirstApplication.Controllers.ManageController.RemovePhoneNumber C# (CSharp) Метод

        public async Task<ActionResult> RemovePhoneNumber()
        {
            var result = await UserManager.SetPhoneNumberAsync(User.Identity.GetUserId(), null);
            if (!result.Succeeded)
            {
                return RedirectToAction("Index", new { Message = ManageMessageId.Error });
            }
            var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
            if (user != null)
            {
                await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);
            }
            return RedirectToAction("Index", new { Message = ManageMessageId.RemovePhoneSuccess });
        }