Imperative

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This sample demonstrates how to define a WsHttpBinding for a service using code, instead of defining the wsHttpBinding binding in configuration. This sample is based on the Getting Started Sample that implements a calculator service.

Note

The WCF samples may already be installed on your machine. Check for the following (default) directory before continuing.

<InstallDrive>:\Samples\WCFWFCardspace

If this directory does not exist, click the download sample link at the top of this page. Note that this link downloads and installs all of the WF, WCF, and CardSpace samples. This sample is located in the following directory.

<InstallDrive>:\Samples\WCFWFCardSpace\WCF\Basic\Service\Imperative.

Note

The set up procedure and build instructions for this sample are located at the end of this topic.

The following code demonstrates how to define a binding imperatively in code.

public static void Main()
{
    WSHttpBinding binding = new WSHttpBinding();
    binding.Name = "binding1";
    binding.HostNameComparisonMode =        HostNameComparisonMode.StrongWildcard;
    binding.Security.Mode = SecurityMode.Message;
    binding.ReliableSession.Enabled = false;
    binding.TransactionFlow = false;
    
    Uri baseAddress =         new Uri("https://localhost:8000/servicemodelsamples/service");

    // Create a ServiceHost for the CalculatorService type and provide the base address.
    using(ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService), baseAddress))
    {
        serviceHost.AddServiceEndpoint(typeof(ICalculator),                                        binding, baseAddress);
        // Open the ServiceHostBase to create listeners and start listening for messages.
        serviceHost.Open();

        // The service can now be accessed.
        Console.WriteLine("The service is ready.");
        Console.WriteLine("Press <ENTER> to terminate service.");
        Console.WriteLine();
        Console.ReadLine();
        // Close the ServiceHostBase to shutdown the service.
        serviceHost.Close();                      
    }           
}

The client creates a channel to communicate with the service as shown in the following sample code.

WSHttpBinding binding = new WSHttpBinding();
binding.Name = "binding1";
binding.HostNameComparisonMode = HostNameComparisonMode.StrongWildcard;
binding.Security.Mode = SecurityMode.Message;
binding.ReliableSession.Enabled = false;
binding.TransactionFlow = false;

String url = "https://localhost:8000/servicemodelsamples/service";
EndpointAddress address = new EndpointAddress(url);
ChannelFactory<ICalculator> channelFactory = new ChannelFactory<ICalculator>(binding,address);
ICalculator channel = channelFactory.CreateChannel();

When you run the sample, the operation requests and responses are displayed in the client console window. Press ENTER in the client window to shut down the client.

    Add(100,15.99) = 115.99
    Subtract(145,76.54) = 68.46
    Multiply(9,81.25) = 731.25
    Divide(22,7) = 3.14285714285714

    Press <ENTER> to terminate client.

To set up, build, and run the sample

  1. Be sure you have performed the One-Time Set Up Procedure for the Windows Communication Foundation Samples.

  2. To build the C# or Visual Basic .NET edition of the solution, follow the instructions in Building the Windows Communication Foundation Samples.

  3. To run the sample in a single- or cross-machine configuration, follow the instructions in Running the Windows Communication Foundation Samples.

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