BookManagement.Web.Controllers.BookController.Edit C# (CSharp) Method

        public ActionResult Edit(int id = 0)
        {
            ViewBag.Categories = db.Categories.ToList();
            Book book = db.Books.Find(id);
            if (book == null)
            {
                return HttpNotFound();
            }

            ViewBag.Categories = db.Categories.ToList();
            return View(book);
        }