// GET: Class2/Create
        public ActionResult Create()
        {
            Class2VM vm = new Class2VM();

            vm.Class1s = db.Class1.ToList();
            return(View(vm));
        }
        public ActionResult Create(Class2VM vm)
        {
            if (ModelState.IsValid)
            {
                vm.Class2.Class1 = db.Class1.Find(vm.Class1Id);
                db.Class2.Add(vm.Class2);
                db.SaveChanges();
                return(RedirectToAction("Index"));
            }

            return(View(vm));
        }