IIS Hosting Using Inline Code

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This sample demonstrates how to implement a service hosted by Internet Information Services (IIS), where the service code is contained in-line in a .svc file and is compiled on demand. Service code can also be implemented directly in source code files located in the application's \App_Code directory, or compiled into assembly deployed in \bin. This sample does not demonstrate these techniques.

Note

The WCF samples may already be installed on your machine. Check this (default) directory before continuing: <InstallDrive>:\Samples\WCFWFCardspaceIf this directory doesn’t exist, click the download sample link at the top of this page. Note that this will download and install all of the WF, WCF, and CardSpace samples, you will only have to do this once. The sample is located in the following directory <InstallDrive>:\Samples\WCFWFCardSpace\WCF\Basic\Service\Hosting\WebHost\InlineCode.

Note

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

The sample demonstrates a typical service that implements a contract that defines a request-reply communication pattern. The service is hosted in IIS and the service code is entirely contained in the Service.svc file. The service is host-activated and compiled on-demand by the first message sent to the service. There is no pre-compilation necessary. The service implements an ICalculator contract as defined in the following code:

// Define a service contract.
[ServiceContract(Namespace="http://Microsoft.ServiceModel.Samples")]
    public interface ICalculator
{
    [OperationContract]
    double Add(double n1, double n2);
    [OperationContract]
    double Subtract(double n1, double n2);
    [OperationContract]
    double Multiply(double n1, double n2);
    [OperationContract]
    double Divide(double n1, double n2);
}

The service implementation calculates and returns the appropriate result.

<%@ServiceHost language=c# Debug="true" Service="Microsoft.ServiceModel.Samples.CalculatorService" %> 
…
// Service class that implements the service contract.
public class CalculatorService : ICalculator
{
    public double Add(double n1, double n2)
    {
        return n1 + n2;
    }
    public double Subtract(double n1, double n2)
    {
        return n1 - n2;
    }
    public double Multiply(double n1, double n2)
    {
        return n1 * n2;
    }
    public double Divide(double n1, double n2)
    {
        return n1 / n2;
    }
}

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. Ensure that 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. For an example on how to create a client application that can call this service, see How to: Create a Windows Communication Foundation Client.

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