DuplexClientBase<TChannel> Class
Used to create a channel to a duplex service and associate that channel with a callback object.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
System.ServiceModel::ClientBase<TChannel>
System.ServiceModel::DuplexClientBase<TChannel>
| Name | Description | |
|---|---|---|
![]() | DuplexClientBase<TChannel>(InstanceContext^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object. |
![]() | DuplexClientBase<TChannel>(InstanceContext^, Binding^, EndpointAddress^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, binding, and service endpoint address. |
![]() | DuplexClientBase<TChannel>(InstanceContext^, ServiceEndpoint^) | Initializes a new instance of the DuplexClientBase<TChannel> class with the specified callback object and service endpoint. |
![]() | DuplexClientBase<TChannel>(InstanceContext^, String^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object and configuration name. |
![]() | DuplexClientBase<TChannel>(InstanceContext^, String^, EndpointAddress^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, configuration name, and service endpoint address. |
![]() | DuplexClientBase<TChannel>(InstanceContext^, String^, String^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, configuration name, and service endpoint address. |
![]() | DuplexClientBase<TChannel>(Object^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object. |
![]() | DuplexClientBase<TChannel>(Object^, Binding^, EndpointAddress^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, binding, and service endpoint address. |
![]() | DuplexClientBase<TChannel>(Object^, ServiceEndpoint^) | Initializes a new instance of the DuplexClientBase<TChannel> class with the specified callback object and service endpoint. |
![]() | DuplexClientBase<TChannel>(Object^, String^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object and configuration name. |
![]() | DuplexClientBase<TChannel>(Object^, String^, EndpointAddress^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, configuration name, and service endpoint address. |
![]() | DuplexClientBase<TChannel>(Object^, String^, String^) | Initializes a new instance of the DuplexClientBase<TChannel> class using the specified callback object, endpoint configuration name, and service endpoint address. |
| Name | Description | |
|---|---|---|
![]() | Channel | Gets the inner channel used to send messages to variously configured service endpoints.(Inherited from ClientBase<TChannel>.) |
![]() | ChannelFactory | Gets the underlying ChannelFactory<TChannel> object.(Inherited from ClientBase<TChannel>.) |
![]() | ClientCredentials | Gets the client credentials used to call an operation.(Inherited from ClientBase<TChannel>.) |
![]() | Endpoint | Gets the target endpoint for the service to which the WCF client can connect.(Inherited from ClientBase<TChannel>.) |
![]() | InnerChannel | Gets the underlying IClientChannel implementation.(Inherited from ClientBase<TChannel>.) |
![]() | InnerDuplexChannel | Gets the inner duplex channel. |
![]() | State | Gets the current state of the ClientBase<TChannel> object.(Inherited from ClientBase<TChannel>.) |
| Name | Description | |
|---|---|---|
![]() | Abort() | Causes the ClientBase<TChannel> object to transition immediately from its current state into the closed state.(Inherited from ClientBase<TChannel>.) |
![]() | Close() | Causes the ClientBase<TChannel> object to transition from its current state into the closed state.(Inherited from ClientBase<TChannel>.) |
![]() | CreateChannel() | Returns a new channel to the service.(Inherited from ClientBase<TChannel>.) |
![]() | DisplayInitializationUI() | Instructs the inner channel to display a user interface if one is required to initialize the channel prior to using it.(Inherited from ClientBase<TChannel>.) |
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetDefaultValueForInitialization<T>() | Replicates the behavior of the default keyword in C#.(Inherited from ClientBase<TChannel>.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | InvokeAsync(ClientBase<TChannel>::BeginOperationDelegate^, array<Object^>^, ClientBase<TChannel>::EndOperationDelegate^, SendOrPostCallback^, Object^) | Provides support for implementing the event-based asynchronous pattern. For more information about this pattern, see Event-based Asynchronous Pattern Overview.(Inherited from ClientBase<TChannel>.) |
![]() | MemberwiseClone() | |
![]() | Open() | Causes the ClientBase<TChannel> object to transition from the created state into the opened state.(Inherited from ClientBase<TChannel>.) |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICommunicationObject::Closed | The event handler that is invoked when the ClientBase<TChannel> object has transitioned from its current state to the closed state.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Closing | The event handler that is invoked when the ClientBase<TChannel> object transitions from its current state to the closed state.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Faulted | The event handler that is invoked when a fault occurs while performing an operation on the ClientBase<TChannel> object.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Opened | The event handler that is invoked when the ClientBase<TChannel> object transitions from the created state to the opened state.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Opening | The event handler that is invoked when the ClientBase<TChannel> object transitions from the created state to the opened state.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | IDisposable::Dispose() | Explicit implementation of the Dispose method.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::BeginClose(AsyncCallback^, Object^) | Begins an asynchronous operation to close the ClientBase<TChannel>.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::BeginClose(TimeSpan, AsyncCallback^, Object^) | Begins an asynchronous operation to close the ClientBase<TChannel> with a specified timeout.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::BeginOpen(AsyncCallback^, Object^) | Begins an asynchronous operation to open the ClientBase<TChannel> object.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::BeginOpen(TimeSpan, AsyncCallback^, Object^) | Begins an asynchronous operation to open the ClientBase<TChannel> object within a specified interval of time.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Close(TimeSpan) | Causes the ClientBase<TChannel> object to transition from its current state into the closed state.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::EndClose(IAsyncResult^) | Completes an asynchronous operation to close the ClientBase<TChannel> object.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::EndOpen(IAsyncResult^) | Completes an asynchronous operation to open the ClientBase<TChannel> object.(Inherited from ClientBase<TChannel>.) |
![]() ![]() | ICommunicationObject::Open(TimeSpan) | Causes the ClientBase<TChannel> object to transition from the created state into the opened state within a specified interval of time.(Inherited from ClientBase<TChannel>.) |
Use the DuplexClientBase<TChannel> class to create a channel to a service that specifies a callback object. The DuplexClientBase<TChannel> object wraps a System.ServiceModel::DuplexChannelFactory<TChannel> object, which provides the connectivity for the WCF object. You can use either type to connect to a duplex service. For more information about duplex services, see Duplex Services.
Special note for Managed C++ users deriving from this class:
Put your cleanup code in (On)(Begin)Close (and/or OnAbort), not in a destructor.
Avoid destructors: they cause the compiler to auto-generate IDisposable
Avoid non-reference members: they can cause the compiler to auto-generate IDisposable
Avoid finalizers; but if you include one, you should suppress the build warning and call SuppressFinalize(Object^) and the finalizer itself from (On)(Begin)Close (and/or OnAbort) in order to emulate what would have been the auto-generated IDisposable behavior.
The following example shows the use in the client of a duplex WCF client type, the SampleDuplexHelloClient, to pass a new System.ServiceModel::InstanceContext object with the callback object to listen for callbacks.
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.






