public async Task <ActionResult> ConfirmEmail(string userId, string code)
        {
            if (userId == null || code == null)
            {
                return(View("Error"));
            }

            IdentityResult result = await UserManager.ConfirmEmailAsync(userId, code);

            if (result.Succeeded)
            {
                return(View("ConfirmEmail"));
            }
            else
            {
                AddErrors(result);
                return(View());
            }
        }