IReceiveMessageCallback.OnReceiveMessage Method
Definition
Important
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Executed when a service message is received.
public:
void OnReceiveMessage(System::ServiceModel::OperationContext ^ operationContext, System::Activities::ExecutionProperties ^ activityExecutionProperties);
public void OnReceiveMessage (System.ServiceModel.OperationContext operationContext, System.Activities.ExecutionProperties activityExecutionProperties);
abstract member OnReceiveMessage : System.ServiceModel.OperationContext * System.Activities.ExecutionProperties -> unit
Public Sub OnReceiveMessage (operationContext As OperationContext, activityExecutionProperties As ExecutionProperties)
Parameters
- operationContext
- OperationContext
The operation context under which the message received.
- activityExecutionProperties
- ExecutionProperties
The set of execution properties available within the workflow.
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.");
}
}
}
Applies to
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