public ActionResult Create(CreateVM vm)
        {
            try
            {
                // TODO: Add insert logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
        // GET: Products/Create
        public ActionResult Create()
        {
            var categories = new List<Category>()
            {
                new Category{Id = 1, Name = "Electronics"},
                new Category{Id = 2, Name = "Beverages"}
            };

            var vm = new CreateVM
            {
                // Anything that you can iterate over, you can pass to a select list.
                // Use Id property of Category to represent the data value, and the Name property to represent the label value
                Categories = new SelectList(categories, "Id", "Name")
            };

            return View(vm);
        }