Microsoft Windows Workflow Foundation 4.0 Cookbook

Loading a persisted workflow from the database

Developing long-running applications is one goal of WF4, and resuming a persisted workflow from the database is the key to long-running applications. In this task, we will create a Sequence workflow with a Delay activity. The workflow will be persisted when it is idle. We then press the Enter key and then the workflow will be resumed and will run until its end.

Getting ready

The SQL workflow instance store needs to be already in use. We can refer the Configuring the SQL persistence store section of this chapter.

How to do it...

1. Create a workflow project:

   Create a new Workflow Console Application under solution Chapter06 and name the project as LoadingUpWorkflowFromPersistenceDB.

2. Create a workflow:

   Open ...