public IActionResult Index(Number number) { if (ModelState.IsValid) { number.Dismember(number.nr, number.bottomRange, number.upperRange); number.ValuesDisplayer(number.selectOption); ViewData["shortNumbers"] = number.numbers; ViewBag.Sum = "Sum of all above numbers is: " + number.AddAllNumbers().ToString(); return(View("Index")); } else { return(View("Index")); } }