public IActionResult Create(Discount model) { if (ModelState.IsValid) { if (model.StartTime == null) { ModelState.AddModelError("", "Start Time is Required"); } if (model.EndTime == null) { ModelState.AddModelError("", "End Time is Required"); } if (ModelState.IsValid) { Discount discount = _northwindContext.CreateDiscount(model); return(RedirectToAction("Detail", new { id = discount.DiscountID })); } else { return(View()); } } else { return(View()); } }