public async Task <IActionResult> Create([Bind("StockPrice,HolderId,CompanyId,Id,ModifiedOn")] Stock stock)
        {
            if (ModelState.IsValid)
            {
                stock.Id = Guid.NewGuid();
                _context.Add(stock);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            ViewData["CompanyId"] = new SelectList(_context.Companies, "Id", "Id", stock.CompanyId);
            ViewData["HolderId"]  = new SelectList(_context.Holders, "Id", "Id", stock.HolderId);
            return(View(stock));
        }