将用户输入值与asp.net mvc中数据库中的值进行比较

Question

标题## [HttpPost]

    public ActionResult LogIn(UserDetail user)
    {
        using (AdventureWorksDBEntities User = new AdventureWorksDBEntities())
        {
            var UserInput= User.UserDetails.Where(b => b.UserName == user.UserName && b.Password == user.Password).FirstOrDefault();
            if (UserInput!=null)
            {
                Session["Id"] = UserInput.id.ToString();
                Session["UserName"] = UserInput.UserName.ToString();
                return Redirect("#");
            }
            else
            {
                ModelState.AddModelError("","Username or Password Doesn't Exist");
            }
        }
        return View();

我想将用户输入值与数据库中的值进行比较。