public ActionResult Create(Product product)
        {
            try
            {
                // TODO: Add insert logic here
                if (ModelState.IsValid)
                {
                    db.Products.Add(product);
                    db.SaveChanges();
                    return RedirectToAction("Index");
                }
                return View(product);

               
            }
            catch
            {
                return View(product);
            }
        }
 public ActionResult Edit(Product product)
 {
     try
     {
         // TODO: Add update logic here
         if (ModelState.IsValid)
         {
             db.Entry(product).State = EntityState.Modified;
             db.SaveChanges();
             return RedirectToAction("Index");
         }
         return View(product);
         
     }
     catch
     {
         return View(product);
     }
 }
        public ActionResult Delete(int id, Product product)
        {
            try
            {
                // TODO: Add delete logic here
                if (ModelState.IsValid)
                {
                    product = db.Products.Find(id);

                    if(product == null)
                    {
                        return HttpNotFound();
                    }

                    db.Products.Remove(product);
                    db.SaveChanges();
                    return RedirectToAction("Index");
                }
                return View(product);
                
            }
            catch
            {
                return View(product);
            }
        }