DataContractFormatAttribute Class
Instructs the Windows Communication Foundation (WCF) infrastructure to use the DataContractSerializer.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
This attribute is similar to the XmlSerializerFormatAttribute attribute. Both attributes can be applied to either a method or a class.
A method can have either of the two attributes applied, but not both. Any operation that has neither applied will use the attribute applied to the containing class. If the containing class does not have either attribute applied, the DataContractSerializer is used.
Applying the attribute also causes a DataContractSerializerOperationBehavior to be created at run time. The behavior allows customization at run time of the serializer behavior.
The following example applies the DataContractFormatAttribute and sets the Style property to Rpc. The RPC style is described in the Web Service Description Language specification (WSDL).
<ServiceContract(), DataContractFormat(Style := OperationFormatStyle.Rpc)> _ Interface ICalculator <OperationContract(), DataContractFormat(Style := OperationFormatStyle.Rpc)> _ Function Add(ByVal a As Double, ByVal b As Double) As Double <OperationContract(), DataContractFormat(Style := OperationFormatStyle.Document)> _ Function Subtract(ByVal a As Double, ByVal b As Double) As Double End Interface
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.