public ActionResult Index(StockViewModel model)
        {
            if (model.Search != null)
            {
                CapstoneContext context = new CapstoneContext();

                model.Company = context.Companies.FirstOrDefault(c => c.StockId == model.Search);
            }

            return View(model);
        }
        public ActionResult Index(string id)
        {
            CapstoneContext context = new CapstoneContext();

            StockViewModel model = new StockViewModel();

            if (!string.IsNullOrEmpty(id))
            {
                model.Company = context.Companies.FirstOrDefault(c => c.StockId == id);
            }

            return View(model);
        }