IReceiveMessageCallback Interface
Definition
Important
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Implements a callback to be executed when a service message is received by the Receive and ReceiveParametersContent activities.
public interface class IReceiveMessageCallback
public interface IReceiveMessageCallback
type IReceiveMessageCallback = interface
Public Interface IReceiveMessageCallback
Examples
The following example shows how to implement the IReceiveMessageCallback interface to access a message header when a message is received.
class ReceiveInstanceIdCallback : IReceiveMessageCallback
{
public const string HeaderName = "InstanceIdHeader";
public const string HeaderNS = "http://Microsoft.Samples.AccessingOperationContext";
public void OnReceiveMessage(System.ServiceModel.OperationContext operationContext, System.Activities.ExecutionProperties activityExecutionProperties)
{
try
{
Guid instanceId = operationContext.IncomingMessageHeaders.GetHeader<Guid>(HeaderName, HeaderNS);
Console.WriteLine("Received a message from a workflow with instanceId = {0}", instanceId);
}
catch (MessageHeaderException)
{
Console.WriteLine("This message must not be from a workflow.");
}
}
}
Methods
OnReceiveMessage(OperationContext, ExecutionProperties) |
Executed when a service message is received. |
Applies to
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