private static void ReadOneTicketMenuAction() { bool validInput = false; int nbr = 0; while (!validInput) { Console.Write("Ticketnummer: "); string inputOfUser = Console.ReadLine(); validInput = Int32.TryParse(inputOfUser, out nbr); } //Ticket t = mgr.GetTicket(nbr); Ticket t = wcfClient.GetTicket(nbr); PrintTicketDetails(t); }