MvcTemplate.Validators.AccountValidator.IsCorrectPassword C# (CSharp) Method

        private Boolean IsCorrectPassword(Int32 accountId, String password)
        {
            String passhash = UnitOfWork
                .Select<Account>()
                .Where(account => account.Id == accountId)
                .Select(account => account.Passhash)
                .Single();

            Boolean isCorrect = Hasher.VerifyPassword(password, passhash);
            if (!isCorrect)
                ModelState.AddModelError<ProfileEditView>(account => account.Password, Validations.IncorrectPassword);

            return isCorrect;
        }