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PORTAL to. NET,JQuery,Java. Script,Gridview. Introduction Here I will explain WCF tutorial with example in asp. First we will see what is WCF windows communication foundation, uses of windows communication foundation and how to create and use windows communication foundation in c. Description What is WCF windows communication foundation Service Windows Communication Foundation Code named Indigo is a programming platform and runtime system for building, configuring and deploying network distributed services. It is the latest service oriented technology Interoperability is the fundamental characteristics of WCF. It is unified programming model provided in. Net Framework 3. 0. WCF is a combined feature of Web Service, Remoting, MSMQ and COM. WCF provides a common platform for all. NET communication. Advantages of WCF     1    WCF is interoperable with other services when compared to. Net Remoting where the client and service have to be. Net.      2    WCF services provide better reliability and security in compared to ASMX web services. In WCF, there is no need to make much change in code for implementing the security model and changing the binding. Small changes in the configuration will make your requirements. WCF has integrated logging mechanism, changing the configuration file settings will provide this functionality. In other technology developer has to write the code. Difference between WCF and Web service. Web service is a part of WCF. WCF offers much more flexibility and portability to develop a service when comparing to web service. Still we are having more advantages over Web service following table provides detailed difference between them. Features. Web Service. WCFHosting. It can be hosted in IISIt can be hosted in IIS, windows activation service, Self hosting, Windows service. ProgrammingWeb. Service attribute has to be added to the classService. Contract attribute has to be added to the class. ModelWeb. Method attribute represents the method exposed to clientOperation. Contract attribute represents the method exposed to client. Operation. One way, Request Response are the different operations supported in web service. Html Video Tutorial For Beginners Exe' title='Html Video Tutorial For Beginners Exe' />One Way, Request Response, Duplex are different type of operations supported in WCFXMLSystem. Xml. serialization name space is used for serialization. System. Runtime. Serialization namespace is used for serialization. Encoding. XML 1. MTOMMessage Transmission Optimization Mechanism, DIME, Custom. XML 1. 0, MTOM, Binary, Custom. Transports. Can be accessed through HTTP, TCP, Custom. Can be accessed through HTTP, TCP, Named pipes, MSMQ,P2. P, Custom. Protocols. Security. Security, Reliable messaging, Transactions. A WCF Service is composed of three components parts viz, 1 Service Class A WCF service class implements some service as a set of methods. Host Environment A Host environment can be a Console application or a Windows Service or a Windows Forms application or IIS as in case of the normal asmx web service in. NET. 3 Endpoints All communications with the WCF service will happen via the endpoints. The endpoint is composed of 3 parts collectively called as ABCs of endpoint as defines below Address The endpoints specify an Address that defines where the endpoint is hosted. Its basically url. Ex http localhostWCFService. SampleService. svc. Binding The endpoints also define a binding that specifies how a client will communicate with the service and the address where the endpoint is hosted. Various components of the WCF are depicted in the figure below      A stands for Address Where is the service      B stands for Binding How can we talk to the service      C stands for Contract What can the service do for us Different bindings supported by WCFBinding. Description. Basic. Http. Binding. Basic Web service communication. No security by default. WSHttp. Binding. Web services with WS support. Supports transactions. WSDual. Http. Binding. Web services with duplex contract and transaction support. WSFederation. Http. Binding. Web services with federated security. Supports transactions. Msmq. Integration. Binding. Communication directly with MSMQ applications. Supports transactions. Net. Msmq. Binding. Audio Editor Deluxe Free Download Full Version. Communication between WCF applications by using queuing. Supports transactions. Net. Named. Pipe. Binding. Communication between WCF applications on same computer. Supports duplex contracts and transactions. Ford Travelpilot Nx S. Net. Peer. Tcp. Binding. Communication between computers across peer to peer services. Supports duplex contracts. Net. Tcp. Binding. Communication between WCF applications across computers. Supports duplex contracts and transactions. Contract The endpoints specify a Contract that defines which methods of the Service class will be accessible via the endpoint each endpoint may expose a different set of methods. Different contracts in WCFService Contract. Service contracts describe the operation that service can provide. For Eg, a Service provide to know the temperature of the city based on the zip code, this service is called as Service contract. It will be created using Service and Operational Contract attribute. Data Contract. Data contract describes the custom data type which is exposed to the client. This defines the data types, which are passed to and from service. Data types like int, string are identified by the client because it is already mention in XML schema definition language document, but custom created class or data types cannot be identified by the client e. Employee data type. By using Data. Contract we can make client to be aware of Employee data type that are returning or passing parameter to the method. Message Contract. Default SOAP message format is provided by the WCF runtime for communication between Client and service. If it is not meeting your requirements then we can create our own message format. This can be achieved by using Message Contract attribute. Fault Contract. Suppose the service I consumed is not working in the client application. I want to know the real cause of the problem. How I can know the error For this we are having Fault Contract. Fault Contract provides documented view for error occurred in the service to client. This helps us to easy identity, what error has occurred. Overall Endpoints will be mentioned in the web. WCF service like thislt system. Model lt services lt servicenameServicebehavior. ConfigurationService. Behavior lt Service Endpoints lt identity lt dnsvaluelocalhost lt identity lt endpoint lt endpointaddressmexbindingmex. Http. BindingcontractIMetadata. Exchange lt service lt services lt behaviors lt service. Mario Forever 4.0 Trainer here. Behaviors lt behaviornameService. Behavior lt service. Metadatahttp. Get. Enabledtrue lt service. Debuginclude. Exception. Detail. In. Faultsfalse lt behavior lt service. Behaviors lt behaviors lt system. Model Creating simple application using WCFFirst open Visual Studio and click file Select New Website Under that select WCF Service and give name for WCF Service and click OK Once you created application you will get default class files including Service. IService. cs. Here IService. Service contracts and Data Contracts and Service. IService where you can all the methods and other stuff.