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ActivityDataTrackingExtract Class

Specifies a property or a field to be extracted from an activity and sent to the tracking service together with an associated collection of annotations when a track point is matched.

Namespace:  System.Workflow.Runtime.Tracking
Assembly:  System.Workflow.Runtime (in System.Workflow.Runtime.dll)

public class ActivityDataTrackingExtract : TrackingExtract

Each user event or activity status event that occurs during a workflow instance is associated with a specific activity. An ActivityDataTrackingExtract specifies a property or a field to be extracted from this activity. You can include an ActivityDataTrackingExtract in either UserTrackPoint.Extracts or ActivityTrackPoint.Extracts to instruct the runtime tracking infrastructure to extract a field or a property from the associated activity when the infrastructure matches an ActivityTrackPoint or a UserTrackPoint. The runtime tracking infrastructure puts the extracted data and any associated annotations in the ActivityTrackingRecord or the UserTrackingRecord that it returns to the tracking service.

Set Member to specify the field or property for the runtime tracking infrastructure to extract from the activity. You can associate additional information with the extracted data by adding to Annotations.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0