Specifies the feature requirements that bindings must provide to the service or client implementation.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Use the to instruct Windows Communication Foundation (WCF) to confirm that the binding provides the features required by the service or client implementation. If a attribute is detected when a service description is loaded from an application configuration file or built programmatically in code, WCF validates the configured binding and supports all the features that the attribute specifies. For example, your service may require the bindings to support queuing. Using allows WCF to confirm that the following requirements are met:
The QueuedDeliveryRequirements property specifies the queuing requirements that a binding must meet.
The RequireOrderedDelivery property indicates whether the binding must support ordered messaging.
The TargetContract property indicates to which type the requirements apply.
The attribute is applied to a class, which can implement any number of service contract interfaces. can be applied to all the contracts the class implements or to only one of them. The attribute can be applied to a class more than once.
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.