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ISendMessageCallback Interface

  • Reference

Definition

Namespace:
System.ServiceModel.Activities
Assembly:
System.ServiceModel.Activities.dll

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 ISendMessageCallback
public interface ISendMessageCallback
type ISendMessageCallback = interface
Public Interface ISendMessageCallback

Examples

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.

Applies to