private static void ShowAllResponsesMenuAction() { bool validInput = false; int nbr = 0; while (!validInput) { Console.Write("Ticketnummer: "); string inputOfUser = Console.ReadLine(); validInput = Int32.TryParse(inputOfUser, out nbr); } //IEnumerable<TicketResponse> responses = mgr.GetTicketResponses(nbr); IEnumerable <TicketResponse> responses = wcfClient.GetTicketResponses(nbr); foreach (var response in responses) { Console.WriteLine(response.GetInfo()); } }