public async Task <IActionResult> Create(Portfolio model)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    var stockData = await StockApi.GetStockData(model.Symbol);

                    var portfolio = new Portfolio
                    {
                        ID                 = model.ID,
                        AppUser            = await _userManager.GetUserAsync(User),
                        Symbol             = model.Symbol,
                        CompanyName        = stockData.CompanyName,
                        PurchaseDateTime   = model.PurchaseDateTime,
                        AmountOfShares     = model.AmountOfShares,
                        PricePerShare      = model.PricePerShare,
                        TotalPurchasePrice = model.PricePerShare * model.AmountOfShares
                    };

                    _context.Add(portfolio);
                    await _context.SaveChangesAsync();

                    //return RedirectToAction(nameof(Index));
                    return(RedirectToAction("Index", "Portfolios"));
                }
            }
            catch (NullReferenceException)
            {
                ModelState.AddModelError("", "Unable to locate company for that symbol. Please check spelling and try again.");
            }
            catch (DataException dex)
            {
                Console.WriteLine(dex);
                ModelState.AddModelError("", "Unable to save your changes.  Please try again.");
            }
            catch (Exception)
            {
                ModelState.AddModelError("", "Error, Please try again.");
            }
            return(View());
        }