public async Task <IActionResult> Create([Bind("CategoryId,Description")] Category category)
        {
            if (ModelState.IsValid)
            {
                db.Add(category);
                await db.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            return(View(category));
        }
        public async Task <IActionResult> Create([Bind("ProductId,Description,PurchaseDate,Price,Available,CategoryId")] Product product)
        {
            if (ModelState.IsValid)
            {
                db.Add(product);
                await db.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            ViewData["CategoryId"] = new SelectList(db.Category, "CategoryId", "Description", product.CategoryId);
            return(View(product));
        }