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FAQ

  • What are data contracts?
    A data contract is a formal agreement between a service and a client that abstractly describes the data to be exchanged. That is, to communicate, the client and the service do not have to share the same types, only the same data contracts.
  • What is data contract in WCF service?
    A data contract precisely defines, for each parameter or return type, what data is serialized (turned into XML) to be exchanged. Windows Communication Foundation (WCF) uses a serialization engine called the Data Contract Serializer by default to serialize and deserialize data (convert it to and from XML).
  • Is DataContract mandatory in WCF?
    3 Answers. No, the DataContractAttribute is not required - WCF will infer serialization rules. The only thing I can think of to check is that the version of .NET is the same on all of your servers. You must decorate your classes with a DataContract and DataMember attributes to be used in a WCF service.
  • What is service contract in WCF?
    Basically a WCF Contract is an agreement between the two parties, in other words a Service and a Client. In Windows Communication Foundation, contracts can be categorized as behavioral or structural. Behavioral Contracts. The ServiceContract attribute marks a type as a Service Contract that contains operations.
  • How many types of contracts are there in WCF?
    There are four types of contract in WCF: Data Contract - it describes the format of your data and defines how data should be serialized/deserialized. To define a DataContract for you service, you can use DataContract , DataMember .
  • What is service contract and OperationContract in WCF?
    Service contract describes the operation that service provide. A Service can have more than one service contract but it should have at least one Service contract. Service Contract can be define using [ServiceContract] and [OperationContract] attribute.
  • Why Datacontract is used in WCF?
    WCF uses a serialization engine called the Data Contract Serializer by default to serialize and deserialize data.We can also explicitly create a data contract by using DataContractAttribute and DataMemberAttribute attributes. This attribute can be applied to classes, structures, and enumerations.
  • What is Datacontract attribute?
    DataContract: DataContract is under namespace System.Runtime.Serialization. During design time, DataContract Attribute is used to indicate which class should be represented as XSD. ... DataContract attribute contains two get and set properties as Name and Namespace.
  • What is Datacontract serialization in WCF?
    Windows Communication Foundation (WCF) uses the DataContractSerializer as its default serialization engine to convert data into XML and to convert XML back into data. The DataContractSerializer is designed to serialize data contract types.
  • What is a data contract?
    A data contract is a formal agreement between a service and a client that abstractly describes the data to be exchanged. That is, to communicate, the client and the service do not have to share the same types, only the same data contracts.
  • What WCF stands for?
    Windows Communication Foundation (WCF) is a framework for building service-oriented applications. Using WCF, you can send data as asynchronous messages from one service endpoint to another. A service endpoint can be part of a continuously available service hosted by IIS, or it can be a service hosted in an application.
  • What is WCF and why it is used?
    WCF stands for Windows Communication Foundation. It is basically used to create a distributed and interoperable Application. WCF Applications came into the picture in .Net 3.0 Framework. This is a framework, which is used for creating Service oriented Applications.
  • What is the difference between WPF and WCF?
    WCF = Windows Communication Foundation is used to build service-oriented applications. WPF = Windows Presentation Foundation is used to write platform-independent applications. Windows communication Fundation(WCF) is used for connecting different applications and passing the data's between them using endpoints.
  • Why we use WCF instead of Web services?
    Since WCF is SOAP based, which uses standard XML schema over HTTP, it could lead to slower performance. WEB API is a better choice for simpler, light weight services. WEB API can use any text format including XML and is faster than WCF. WEB API can be used to create full-blown REST Services.
  • What is WCF and Web service?
    Basic and primary difference is, ASP.NET web service is designed to exchange SOAP messages over HTTP only while WCF Service can exchange message using any format (SOAP is default) over any transport protocol i.e. HTTP, TCP, MSMQ or NamedPipes etc. ... Web Services use XmlSerializer but WCF uses DataContractSerializer.
  • What is DataContractSerializer in WCF?
    Windows Communication Foundation (WCF) includes a new serialization engine, the DataContractSerializer. The DataContractSerializer translates between .NET Framework objects and XML, in both directions. ... WCF also includes a companion serializer, the NetDataContractSerializer.
  • What is DataMember in WCF?
    A datacontract is a formal agreement between a client and service that abstractly describes the data to be exchanged. In WCF, the most common way of serialization is to make the type with the datacontract attribute and each member as datamember. Creating a basic DataContract and DataMember.
  • Why DataContractSerializer is faster than XMLSerializer?
    DataContractSerializer is the default serializer fot the WCF. DataContractSerializer is faster than XMLSerializer because we don't have full control over serialization. ... This approach serializes properties as well as fields. DataContractSerializer can serialize protected and private members also.
  • What is Datacontract and DataMember in WCF?
    A datacontract is a formal agreement between a client and service that abstractly describes the data to be exchanged. In WCF, the most common way of serialization is to make the type with the datacontract attribute and each member as datamember. Creating a basic DataContract and DataMember.