AjaxItemSelect.Controllers.ManageController.RemoveLogin C# (CSharp) Метод

        public async Task<ActionResult> RemoveLogin(string loginProvider, string providerKey)
        {
            ManageMessageId? message;
            var result = await UserManager.RemoveLoginAsync(User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));
            if (result.Succeeded)
            {
                var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
                if (user != null)
                {
                    await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);
                }
                message = ManageMessageId.RemoveLoginSuccess;
            }
            else
            {
                message = ManageMessageId.Error;
            }
            return RedirectToAction("ManageLogins", new { Message = message });
        }