public IActionResult Сalculate(Credit credit) { if (ModelState.IsValid) { var vm = new CalculateViewModel { Credit = credit, CreditResults = credit.StacksCredit == StacksCredit.InDay ? _calculateService.GetCreditDaysResult(credit) : _calculateService.GetCreditMounthResult(credit) }; return(View(vm)); } else { return(View(credit)); } }