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CompositeDuplexBindingElement Class

Represents the binding element that is used when the client must expose an endpoint for the service to send messages back to the client.

System.Object
  System.ServiceModel.Channels.BindingElement
    System.ServiceModel.Channels.CompositeDuplexBindingElement

Namespace:  System.ServiceModel.Channels
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public sealed class CompositeDuplexBindingElement : BindingElement, 
	IPolicyExportExtension

The CompositeDuplexBindingElement type exposes the following members.

  NameDescription
Public methodCompositeDuplexBindingElementInitializes a new instance of the CompositeDuplexBindingElement class.
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  NameDescription
Public propertyClientBaseAddressGets or sets the base address for the client.
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  NameDescription
Public methodBuildChannelFactory<TChannel>Returns a channel factory that can create a composite duplex channel. (Overrides BindingElement.BuildChannelFactory<TChannel>(BindingContext).)
Public methodBuildChannelListener<TChannel>Returns a channel listener that can accept a composite duplex channel. (Overrides BindingElement.BuildChannelListener<TChannel>(BindingContext).)
Public methodCanBuildChannelFactory<TChannel>Returns a value that indicates whether the binding can build the channel factory that produces a specific type of channel that satisfies the context requirements. (Overrides BindingElement.CanBuildChannelFactory<TChannel>(BindingContext).)
Public methodCanBuildChannelListener<TChannel>Returns a value that indicates whether the binding can build the channel listener that accepts a specific type of channel that satisfies the context requirements. (Overrides BindingElement.CanBuildChannelListener<TChannel>(BindingContext).)
Public methodCloneReturns a deep clone of the current binding element. (Overrides BindingElement.Clone().)
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetProperty<T>Returns a typed object requested from the appropriate layer in one of the channel stacks. (Overrides BindingElement.GetProperty<T>(BindingContext).)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate methodIPolicyExportExtension.ExportPolicyExports custom policy assertions about bindings that represent the presence of composite duplex in the binding.
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This is commonly used with transports, such as HTTP, that do not allow duplex communications natively. TCP, by contrast, does allow duplex communications natively and so does not require the use of this binding element for the service to send messages back to a client.

The client must expose an address at which the service can contact it to establish a connection from the service to the client. This client address is provided by the ClientBaseAddress property. Note that Windows Communication Foundation (WCF) auto-generates a ClientBaseAddress if one is not explicitly set by the user.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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