CallbackBehaviorAttribute Class

Configures a callback service implementation in a Silverlight client application.

Inheritance Hierarchy


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


<AttributeUsageAttribute(AttributeTargets.Class)> _
Public NotInheritable Class CallbackBehaviorAttribute _
    Inherits Attribute _
    Implements IEndpointBehavior
public sealed class CallbackBehaviorAttribute : Attribute, 

The CallbackBehaviorAttribute type exposes the following members.


  Name Description
Public method CallbackBehaviorAttribute Initializes a new instance of the CallbackBehaviorAttribute class.



  Name Description
Public property AutomaticSessionShutdown Specifies whether to automatically close a session when a service closes a duplex session.
Public property UseSynchronizationContext Gets or sets a value that specifies whether to use the current synchronization context to choose the thread of execution.



  Name Description
Public method Equals Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected method 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.)
Public method GetHashCode Returns the hash code for this instance. (Inherited from Attribute.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method Match When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)


Explicit Interface Implementations

  Name Description
Explicit interface implemetationPrivate method IEndpointBehavior.AddBindingParameters Configures the binding elements to support the callback behavior.
Explicit interface implemetationPrivate method IEndpointBehavior.ApplyClientBehavior Configures the client runtime to support the callback object.
Explicit interface implemetationPrivate method IEndpointBehavior.ApplyDispatchBehavior Implementation of the ApplyDispatchBehavior method. This implementation has no effect.
Explicit interface implemetationPrivate method IEndpointBehavior.Validate Validates the endpoint description prior to building the runtime.



Use the CallbackBehaviorAttribute attribute to configure or extend the execution behavior of a callback contract implementation in a client application.

The CallbackBehaviorAttribute must be applied to the class that implements the callback contract. If applied to a non-duplex contract implementation an InvalidOperationException exception is thrown at runtime.

The following properties are available:

Version Information


Supported in: 5, 4


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