Services

This topic applies to Windows Workflow Foundation 4 (WF4).

This section contains samples that demonstrate scenarios using workflow services.

In This Section

• OperationScope
  Demonstrates how the messaging activities, Receive and SendReply can be used to expose an existing custom activity as an operation in a workflow service.

• Accessing OperationContext
  Demonstrates how the messaging activities (Receive and Send) can be used with a custom scope activity to access Current and attach or retrieve a custom message header within an outgoing or incoming message.

• LINQ Message Query Correlation
  Demonstrates how to do content-based correlation using a custom MessageQuery implementation as opposed to the system-provided XPathMessageQuery.

• Correlated Calculator
  Demonstrates how to use the messaging activities (Receive and SendReply) in the designer with content-based correlation based on a parameter in the message.

• Securing Workflow Services
  Demonstrates creating a basic workflow service using the Receive and SendReply activities, and using Windows Communication Foundation (WCF) configuration to define secure endpoints for use by the workflow service.

• Asynchronous Communication
  Demonstrates how the communication between two different Windows Workflow Foundation (WF) services is done asynchronously by default.

Build Date: 2012-03-02