Titlebook: Beginning WF; Windows Workflow in Mark J. Collins Book 2010 Mark Collins 2010 .NET Framework.Collections.Exception Handling.Web Services.W

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ExtensionsIn the previous chapter, you used a workflow extension to persist the workflow instance to a database. In this chapter, I’ll explain what extensions are and how to use them. You will also develop some custom extensions.

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滔滔不絕地講

使顯得不重要

Arthropathy

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laxative

Send and Receiveuse the Windows Communication Foundation (WCF) to transmit and listen for messages. In this chapter, you’ll build a simple console application that uses workflow to communicate with another copy of the same application.

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Web Services web service receives a request, performs some appropriate processing, and returns a response. This naturally translates to the Receive and Send activities you used in the last two chapters. Because these activities are integrated with the Windows Communication Foundation (WCF), you can easily creat

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Transactions with Persistencetabase transaction. This will ensure that your application tables are consistent with the instance data. You will provide extensions that override the PersistenceParticipant class and update your application data when the workflow is persisted.