Essential Windows Communication Foundation (WCF): For .NET Framework 3.5

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  1. Essential Windows Communication Foundation (WCF): For .NET Framework 3.5
  2. Essential Windows Communication Foundation: For .NET Framework 3.5
  3. Common portion of outline
  4. – Baby Programmer

This technology was first released in November as a part of. We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this. Windows Communication Foundation. Interpretation Translation. CODE Magazine. Retrieved NET Framework 4". C Visual Basic.

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Java and C C and Visual Basic. NET Java and. NET platforms. Net Framework. NET Framework. Categories: Microsoft development tools Windows communication and services Microsoft application programming interfaces Windows Server Windows Vista Web services Service-oriented architecture related products. NET framework. Mark and share Search through all dictionaries Translate… Search Internet. Contents 1 The architectures 1. Common 1. Other 2. CLR Profiler.

Essential Windows Communication Foundation (WCF): For .NET Framework 3.5

Administration and management. Text and multilingual support. At the highest level, you can use WCF for the following:. Essentially, this means you can use the WCF model for a variety of different areas that previously required different code bases. NET interface , which by definition defines a contract that a class implementing the interface must adhere to.

Essential Windows Communication Foundation: For .NET Framework 3.5

Therefore, a WCF contract defines the operations that a service can perform. Step 4 will cover the specifics of building an interface and establishing WCF contracts. So if you used. An endpoint definition consists of the base address, along with the binding and contract information. The configuration files in Step 5 and Step 6 will contain examples of endpoint definitions. WCF allows you to define as many endpoints as necessary-such as a specific endpoint for a. NET client, and another endpoint for a non-. NET client. Hosting environments refers to the architecture for hosting WCF services.

You can host a WCF service in a.

Common portion of outline

NET application or a Windows service. Code time!

Both will receive a customerID integer as a parameter, and both will return an XML string for the results. The code for the public interface Listing 1 and Listing 2 contains two new keyword attributes: ServiceContract and OperationContract. The ServiceContact attribute defines the operations that a service can perform, and the OperationContract attribute identifies the exact methods.

The interface is your contract pun intended between the client and the server.

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Learn the fundamental WCF terms and security options. Study the entire object model in System. These will be your vocabulary. The only noteworthy aspect of the customer business object aside from the fact that the methods are merely test methods that return dummy test data is that the class implements the ICustomer interface from the previous step. One of the requirements of this demo application is the ability to access the back-end business object through different communication protocols e. Prior to WCF, developers who used.

NET remoting would often derive from System. MarshalByRefObject in conjunction with interfaces. This allowed them to set up the necessary messaging between the client proxy and the remote object. WCF handles that in the endpoint binding definition and the interface; therefore, you no longer need System. MarshalByRefObject , and the back-end class looks like any other class implementing an interface.

In other words, this allows you to separate the interface from the implementation. The server-side hosting is very simple. The code includes the App.

Config reference to the service, which starts with the name of the business class:. Config also contains the endpoint address, binding, and contract name. This first example will use basic TCP binding to the localhost port Note that the contract specifics the interface. The next step creates the client application. Notice that the client-side configuration settings for App. Config are almost identical to those on the server-side in the previous tip.

You could use this if you needed to present multiple communication options to a user. The code to activate the service on the client side uses the ChannelFactory class, a cornerstone of the client piece. The ChannelFactory is a factory class that creates a communication channel of a specific type for the client to send a message to an endpoint that you specified in your configuration.

Perhaps more importantly, you can distribute changes via configuration files without having to recompile and redistribute new software modules. Make sure to add a. NET reference to System. ServiceModel any time you write code using the WCF object model. Listing 6 and 7 opened a ServiceHost object using configuration settings in app. Finally, create an instance of the ServiceHost object, and use the method AddServicePoint to define the type reference to the service contract the interface , the binding object, and the address.

Second, right-click in Solution Explorer and add. – Baby Programmer

Once you do that, Solution Explorer will look like Figure 2. Note that Figure 2 contains a service file called Service. The contents are as follows:. Many online demos feature a simple codebehind file that contains both an interface and the class code, but this example shows how to specify an external DLL.

Your next step is to test out the service in a browser. You can enable Metadata publishing by adding the following line to web. The next step will create a simple. NET client to consume the service. In the.