EventSource.SetCurrentThreadActivityId Method (Guid, Guid)

.NET Framework (current version)

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[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.

Namespace:   System.Diagnostics.Tracing
Assembly:  mscorlib (in mscorlib.dll)

public static void SetCurrentThreadActivityId(
	Guid activityId,
	out Guid oldActivityThatWillContinue


Type: System.Guid

The current thread's new activity ID, or Guid.Empty to indicate that work on the current thread is not associated with any activity.

Type: System.Guid

When this method returns, contains the previous activity ID on the current thread.

You can call the SetCurrentThreadActivityId(Guid, Guid) 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.

Universal Windows Platform
Available since 8.1
.NET Framework
Available since 4.5.1
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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