public ActionResult BillingInfo(string customerId) { int id = 0; Int32.TryParse(customerId, out id); CustomerDT customer = CustomersManager.GetCustomer(id); List <InvoiceDT> invoices = CustomersManager.GetCustomerInvoices(id); decimal balance = CustomersManager.GetCustomerBalance(id); string cardType = string.Empty; ViewBag.Customer = customer; ViewBag.Invoices = invoices; ViewBag.Balance = balance; ViewBag.CardNumber = CustomersManager.GetLastFourDigitCreditCards(customer.Id, out cardType); ViewBag.CardType = cardType; return(View()); }