ISendMessageCallback Interface
Definition
Important
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An interface that implements a callback that is called just before a message is sent on the wire by the Send or SendParametersContent activities.
public interface class ISendMessageCallbackpublic interface ISendMessageCallbacktype ISendMessageCallback = interfacePublic Interface ISendMessageCallbackExamples
The following example shows how to implement the ISendMessageCallback interface to a new header to a message before it is sent out on the wire.
class SendInstanceIdCallback : ISendMessageCallback
{
public const string HeaderName = "InstanceIdHeader";
public const string HeaderNS = "http://Microsoft.Samples.AccessingOperationContext";
public Guid InstanceId { get; set; }
public void OnSendMessage(System.ServiceModel.OperationContext operationContext)
{
operationContext.OutgoingMessageHeaders.Add(MessageHeader.CreateHeader(HeaderName, HeaderNS, this.InstanceId));
}
}
Methods
| OnSendMessage(OperationContext) |
Executed when a service message is sent. |
