CommunicationException Class
Represents a communication error in either the service or client application.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
System::Exception
System::SystemException
System.ServiceModel::CommunicationException
System.ServiceModel::ActionNotSupportedException
System.ServiceModel::AddressAccessDeniedException
System.ServiceModel::AddressAlreadyInUseException
System.ServiceModel.Channels::RedirectionException
System.ServiceModel.Channels::RetryException
System.ServiceModel::ChannelTerminatedException
System.ServiceModel::CommunicationObjectAbortedException
System.ServiceModel::CommunicationObjectFaultedException
System.ServiceModel.Dispatcher::MessageFilterException
System.ServiceModel::EndpointNotFoundException
System.ServiceModel::FaultException
System.ServiceModel.Persistence::PersistenceException
System.ServiceModel::PoisonMessageException
System.ServiceModel::ProtocolException
System.ServiceModel.Security::MessageSecurityException
System.ServiceModel.Security::SecurityAccessDeniedException
System.ServiceModel.Security::SecurityNegotiationException
System.ServiceModel::ServerTooBusyException
System.ServiceModel::ServiceActivationException
| Name | Description | |
|---|---|---|
![]() | CommunicationException() | Initializes a new instance of the CommunicationException class. |
![]() | CommunicationException(SerializationInfo^, StreamingContext) | Initializes a new instance of the CommunicationException class, using the specified serialization information and context objects. |
![]() | CommunicationException(String^) | Initializes a new instance of the CommunicationException class, using the specified message. |
![]() | CommunicationException(String^, Exception^) | Initializes a new instance of the CommunicationException class, using the specified message and the inner exception. |
| Name | Description | |
|---|---|---|
![]() | Data | Gets a collection of key/value pairs that provide additional user-defined information about the exception.(Inherited from Exception.) |
![]() | HelpLink | Gets or sets a link to the help file associated with this exception.(Inherited from Exception.) |
![]() | HResult | Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.(Inherited from Exception.) |
![]() | InnerException | |
![]() | Message | Gets a message that describes the current exception.(Inherited from Exception.) |
![]() | Source | Gets or sets the name of the application or the object that causes the error.(Inherited from Exception.) |
![]() | StackTrace | Gets a string representation of the immediate frames on the call stack.(Inherited from Exception.) |
![]() | TargetSite | Gets the method that throws the current exception.(Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | 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.) |
![]() | GetBaseException() | |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetObjectData(SerializationInfo^, StreamingContext) | When overridden in a derived class, sets the SerializationInfo with information about the exception.(Inherited from Exception.) |
![]() | GetType() | Gets the runtime type of the current instance.(Inherited from Exception.) |
![]() | MemberwiseClone() | |
![]() | ToString() | Creates and returns a string representation of the current exception.(Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | SerializeObjectState | Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.(Inherited from Exception.) |
Robust client and service Windows Communication Foundation (WCF) applications handle CommunicationException objects that may be thrown during communication. There are also two CommunicationException-derived exception types (FaultException<TDetail> and FaultException) that clients also often expect. Therefore, in order to prevent the generic CommunicationException handler from catching these more specific exception types, catch these exceptions prior to handling CommunicationException.
FaultException<TDetail> objects are thrown on the client when a SOAP fault that is specified in the operation contract is received in response to a two-way operation (that is, a method with an OperationContractAttribute attribute with IsOneWay set to false).
FaultException objects are thrown when a listener receives a SOAP fault that is not expected or specified in the operation contract. This usually occurs when the application is being debugged and the service has the IncludeExceptionDetailInFaults property set to true.
Note |
|---|
When implementing custom channels and binding elements, it is strongly recommended that your components throw only System::TimeoutException or CommunicationException-derived objects. In the case where your components throw a recoverable exception that is specific to the component, wrap that exception inside a CommunicationExceptionobject. |
For more details about designing and using the WCF fault system, see Specifying and Handling Faults in Contracts and Services.
Important |
|---|
The WCF Runtime will not throw a CommunicationException that is unsafe to handle at the point where it leaves the WCF Runtime and enters user code. |
The following code example shows a client that handles CommunicationException types. This client also handles FaultException objects because the service has IncludeExceptionDetailInFaults set to true.
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.





