public IActionResult Index()
        {
            // Get Products from database
            Product[] products = new Product[]
            {
                new Product {
                    ProductId = 1, Name = "Item 1"
                },
                new Product {
                    ProductId = 2, Name = "Item 2"
                },
                new Product {
                    ProductId = 3, Name = "Item 3"
                }
            };

            // Create your TicketModel from Ticket and Products in here
            TicketModel model = new TicketModel
            {
                Ticket = new Ticket()
                {
                    TicketId = 1
                },
                AvailableProducts = products.Select(x => new SelectListItem {
                    Value = x.ProductId.ToString(), Text = x.Name
                })
            };

            return(View(model));
        }