DuplexChannelFactory<TChannel> Class

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Provides the means to create and manage duplex channels of different types that are used by clients to send and receive messages to and from service endpoints.

Inheritance Hierarchy

System.Object
  System.ServiceModel.Channels.CommunicationObject
    System.ServiceModel.ChannelFactory
      System.ServiceModel.ChannelFactory<TChannel>
        System.ServiceModel.DuplexChannelFactory<TChannel>

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

Syntax

'Declaration
Public Class DuplexChannelFactory(Of TChannel) _
    Inherits ChannelFactory(Of TChannel)

public class DuplexChannelFactory<TChannel> : ChannelFactory<TChannel>

Type Parameters

• TChannel
  The type of channel produced by the channel factory.

The DuplexChannelFactory<TChannel> type exposes the following members.

Constructors

	Name	Description
	DuplexChannelFactory<TChannel>(InstanceContext, Binding)	Initializes a new instance of the DuplexChannelFactory<TChannel> class with a context that implements the callback contract and a specified binding.
	DuplexChannelFactory<TChannel>(InstanceContext, String)	Initializes a new instance of the DuplexChannelFactory<TChannel> class with an object that implements the callback contract and a specified configuration.
	DuplexChannelFactory<TChannel>(InstanceContext, Binding, EndpointAddress)	Initializes a new instance of the DuplexChannelFactory<TChannel> class with an object that implements the callback contract and a specified binding and endpoint address.
	DuplexChannelFactory<TChannel>(InstanceContext, Binding, String)	Initializes a new instance of the DuplexChannelFactory<TChannel> class with the specified instance context, binding, and remote address.
	DuplexChannelFactory<TChannel>(InstanceContext, String, EndpointAddress)	Initializes a new instance of the DuplexChannelFactory<TChannel> class with an object that implements the callback contract and a specified configuration and endpoint address.

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Properties

	Name	Description
	Credentials	Gets the credentials used by clients to communicate a service endpoint over the channels produced by the factory. (Inherited from ChannelFactory.)
	DefaultCloseTimeout	Gets the default interval of time provided for a close operation to complete. (Inherited from ChannelFactory.)
	DefaultOpenTimeout	Gets the default interval of time provided for an open operation to complete. (Inherited from ChannelFactory.)
	Endpoint	Gets the service endpoint to which the channels produced by the factory connect. (Inherited from ChannelFactory.)
	IsDisposed	Gets a value that indicates whether the communication object has been disposed. (Inherited from CommunicationObject.)
	State	Gets a value that indicates the current state of the communication object. (Inherited from CommunicationObject.)
	ThisLock	Gets the mutually exclusive lock that protects the class instance during a state transition. (Inherited from CommunicationObject.)

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Methods

	Name	Description
	Abort	Causes a communication object to transition immediately from its current state into the closing state. (Inherited from CommunicationObject.)
	ApplyConfiguration	Initializes the channel factory with the behaviors provided by a specified configuration file and with those in the service endpoint of the channel factory. (Inherited from ChannelFactory.)
	BeginClose(AsyncCallback, Object)	Begins an asynchronous operation to close a communication object. (Inherited from CommunicationObject.)
	BeginClose(TimeSpan, AsyncCallback, Object)	Begins an asynchronous operation to close a communication object with a specified timeout. (Inherited from CommunicationObject.)
	BeginOpen(AsyncCallback, Object)	Begins an asynchronous operation to close a communication object. (Inherited from CommunicationObject.)
	BeginOpen(TimeSpan, AsyncCallback, Object)	Begins an asynchronous operation to close a communication object within a specified interval of time. (Inherited from CommunicationObject.)
	Close()	Causes a communication object to transition from its current state into the closed state. (Inherited from CommunicationObject.)
	Close(TimeSpan)	Causes a communication object to transition from its current state into the closed state within a specified interval of time. (Inherited from CommunicationObject.)
	CreateChannel()	Creates a channel that is used to send messages to a service. (Inherited from ChannelFactory<TChannel>.)
	CreateChannel(EndpointAddress)	Creates a channel that is used to send messages to a service at a specific endpoint address. (Inherited from ChannelFactory<TChannel>.)
	CreateChannel(InstanceContext)	Creates a duplex channel between a service and a callback instance on the client.
	CreateChannel(EndpointAddress, Uri)	Creates a duplex channel between a service and a callback instance on the client. (Overrides ChannelFactory<TChannel>.CreateChannel(EndpointAddress, Uri).)
	CreateChannel(InstanceContext, EndpointAddress)	Creates a duplex channel between a service and a callback instance on the client.
	CreateChannel(InstanceContext, EndpointAddress, Uri)	Creates a duplex channel between a service and a callback instance on the client.
	CreateDescription	Creates a description of the service endpoint associated with this duplex channel factory. (Overrides ChannelFactory<TChannel>.CreateDescription().)
	CreateFactory	Builds the channel factory for the current endpoint of the factory. (Inherited from ChannelFactory.)
	EndClose	Completes an asynchronous operation to close a communication object. (Inherited from CommunicationObject.)
	EndOpen	Completes an asynchronous operation to open a communication object. (Inherited from CommunicationObject.)
	EnsureOpened	Opens the current channel factory if it is not yet opened. (Inherited from ChannelFactory.)
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Fault	Causes a communication object to transition from its current state into the faulted state. (Inherited from CommunicationObject.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetCommunicationObjectType	Gets the type of communication object. (Inherited from CommunicationObject.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetProperty<T>	Returns the typed object requested, if present, from the appropriate layer in the channel stack, or nulla null reference (Nothing in Visual Basic) if not present. (Inherited from ChannelFactory.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	InitializeEndpoint(ServiceEndpoint)	Initializes the service endpoint of the channel factory with a specified service endpoint. (Inherited from ChannelFactory.)
	InitializeEndpoint(Binding, EndpointAddress)	Initializes the service endpoint of the channel factory with a specified binding and address. (Inherited from ChannelFactory.)
	InitializeEndpoint(String, EndpointAddress)	Initializes the service endpoint of the channel factory with a specified address and configuration. (Inherited from ChannelFactory.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnAbort	Terminates the inner channel factory of the current channel factory. (Inherited from ChannelFactory.)
	OnBeginClose	Begins an asynchronous close operation on the inner channel factory of the current channel factory that has a state object associated with it. (Inherited from ChannelFactory.)
	OnBeginOpen	Begins an asynchronous open operation on the inner channel factory of the current channel factory that has a state object associated with it. (Inherited from ChannelFactory.)
	OnClose	Calls close on the inner channel factory with a specified time-out for the completion of the operation. (Inherited from ChannelFactory.)
	OnClosed	Invoked during the transition of a communication object into the closing state. (Inherited from CommunicationObject.)
	OnClosing	Invoked during the transition of a communication object into the closing state. (Inherited from CommunicationObject.)
	OnEndClose	Completes an asynchronous close operation on the inner channel factory of the current channel factory. (Inherited from ChannelFactory.)
	OnEndOpen	Completes an asynchronous open operation on the inner channel factory of the current channel factory. (Inherited from ChannelFactory.)
	OnFaulted	Inserts processing on a communication object after it transitions to the faulted state due to the invocation of a synchronous fault operation. (Inherited from CommunicationObject.)
	OnOpen	Calls open on the inner channel factory of the current channel factory with a specified time-out for the completion of the operation. (Inherited from ChannelFactory.)
	OnOpened	Initializes a read-only copy of the ClientCredentials object for the channel factory. (Inherited from ChannelFactory.)
	OnOpening	Builds the inner channel factory for the current channel. (Inherited from ChannelFactory.)
	Open()	Causes a communication object to transition from the created state into the opened state. (Inherited from CommunicationObject.)
	Open(TimeSpan)	Causes a communication object to transition from the created state into the opened state within a specified interval of time. (Inherited from CommunicationObject.)
	ThrowIfDisposed	Throws an exception if the communication object is disposed. (Inherited from CommunicationObject.)
	ThrowIfDisposedOrImmutable	Throws an exception if the communication object the State property is not set to the Created state. (Inherited from CommunicationObject.)
	ThrowIfDisposedOrNotOpen	Throws an exception if the communication object is not in the Opened state. (Inherited from CommunicationObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	Closed	Occurs when a communication object transitions into the closed state. (Inherited from CommunicationObject.)
	Closing	Occurs when a communication object transitions into the closing state. (Inherited from CommunicationObject.)
	Faulted	Occurs when a communication object transitions into the faulted state. (Inherited from CommunicationObject.)
	Opened	Occurs when a communication object transitions into the opened state. (Inherited from CommunicationObject.)
	Opening	Occurs when a communication object transitions into the opening state. (Inherited from CommunicationObject.)

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Explicit Interface Implementations

	Name	Description
	IDisposable.Dispose	Closes the current channel factory. (Inherited from ChannelFactory.)

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Remarks

A duplex channel enables clients and servers to communicate with each other independently so that either can initiate calls to the other. A duplex service can send messages to the client endpoint, providing event-like behavior. Duplex communication occurs when a client establishes a session with a service and provides the service with a channel on which the service can send messages back to the client. The various CreateChannel methods are used to create these duplex channels.

Examples

The following sample shows how to create a channel factory and use it to create and manage channels.

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

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

See Also

Reference

System.ServiceModel Namespace