Gets a collection that specifies data to be extracted from the workflow instance and sent to the tracking service.
Assembly: System.Workflow.Runtime (in System.Workflow.Runtime.dll)
When a track point is matched, the runtime tracking infrastructure can extract data from the workflow instance. The runtime tracking infrastructure encapsulates the extracted data in TrackingDataItem objects that it puts in the Body of the ActivityTrackingRecord that it sends to the tracking service. If is empty, no data will be extracted.
You can add ActivityDataTrackingExtract objects to to specify member data that should be extracted from the activity associated with this track point, and you can add WorkflowDataTrackingExtract objects to to specify member data that should be extracted from the activity of the workflow.
Available since 3.0