static void Main() { // Create a client CalculatorClient client = new CalculatorClient(); // Call the Add service operation. double value1 = 100.00D; double value2 = 15.99D; double result = client.Add(value1, value2); Console.WriteLine("Add({0},{1}) = {2}", value1, value2, result); // Call the Subtract service operation. value1 = 145.00D; value2 = 76.54D; result = client.Subtract(value1, value2); Console.WriteLine("Subtract({0},{1}) = {2}", value1, value2, result); // Call the Multiply service operation. value1 = 9.00D; value2 = 81.25D; result = client.Multiply(value1, value2); Console.WriteLine("Multiply({0},{1}) = {2}", value1, value2, result); // Call the Divide service operation. value1 = 22.00D; value2 = 7.00D; result = client.Divide(value1, value2); Console.WriteLine("Divide({0},{1}) = {2}", value1, value2, result); // Call the Sum service operation. int[] values = { 1, 2, 3, 4, 5 }; using (new OperationContextScope(client.InnerChannel)) { Message request = Message.CreateMessage(OperationContext.Current.OutgoingMessageHeaders.MessageVersion, "http://Microsoft.ServiceModel.Samples/ICalculator/Sum", values); Message reply = client.Sum(request); int sum = reply.GetBody <int>(); Console.WriteLine("Sum(1,2,3,4,5) = {0}", sum); } //Closing the client gracefully closes the connection and cleans up resources client.Close(); Console.WriteLine(); Console.WriteLine("Press <ENTER> to terminate client."); Console.ReadLine(); }