IReceiveMessageCallback Interface
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈