public ActionResult Create(int id = -1)
 {
     if (id == -1)
         return HttpNotFound();
     PostModels post = new PostModels();
     ProductModels prod = db.Products.Find(id);
     if (prod == null)
         return HttpNotFound();
     post.prodId = id;
     return View(post);
 }
 public ActionResult Create(PostModels postmodels)
 {
     ProductModels prod = db.Products.Find(postmodels.prodId);
     if (prod == null)
         return HttpNotFound();
     postmodels.postDate = DateTime.Now;
     if (ModelState.IsValid)
     {
         db.Posts.Add(postmodels);
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return RedirectToAction("../Product/Index");
     // return View(postmodels);
 }
 public ActionResult Edit(PostModels postmodels)
 {
     if (ModelState.IsValid)
     {
         db.Entry(postmodels).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(postmodels);
 }