static void Main(string[] args) { try { using (BookCapacityService client = new BookCapacityService { Url = "http://localhost:49874/EnergyService.asmx" }) { var request = new BookCapacityRequestType { Customer = "Frank Pommerening", MessageIdentifier = Guid.NewGuid().ToString("D"), Quantity = 5000, Unit = CapacityUnit.KWh, ValidFrom = DateTime.Now.AddDays(1), ValidTo = DateTime.Now.AddMonths(1).AddDays(1) }; Console.WriteLine("Starte Kapazitätsanfrage"); var result = client.BookCapacity(request); Console.WriteLine("{0}: {1} {2}", result.MessageIdentifier, result.Quantity, result.Unit); } } catch (Exception exception) { Console.WriteLine(exception); } Console.ReadLine(); }