EventSource.SetCurrentThreadActivityId Method (Guid, Guid)
[Supported in the .NET Framework 4.5.1 and later versions]
Sets the activity ID on the current thread, and returns the previous activity ID.
Assembly: mscorlib (in mscorlib.dll)
public static void SetCurrentThreadActivityId( Guid activityId, out Guid oldActivityThatWillContinue )
You can call the method to temporarily overwrite the current thread's activity ID with a new activity ID. You must then restore the previous activity ID by passing the oldActivityThatWillContinue argument to the SetCurrentThreadActivityId(Guid) method.
Windows Phone 8.1
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.