Microsoft® Visual Studio® 2010 Unleashed

Runtime and Primitives

The Runtime activities in the Toolbox enable you to communicate with the WF runtime engine to indicate persistence or termination of your workflow. The Primitives handle basics tasks such as variable assignment and writing text. Figure 23.11 shows these items in the Toolbox.

Figure 23.11 The Primitives activities enable you to do basic tasks in a workflow.

Notice the Persist activity. This is used to persist the workflow’s state to physical storage so memory can be freed; it can be retrieved at a later time. You can configure your workflows to persist as-needed or you can explicitly indicate persistence using this activity. ...