EventWrittenEventArgs.ActivityId Property

.NET Framework (current version)
 

[Supported in the .NET Framework 4.5.1 and later versions]

Gets the activity ID on the thread that the event was written to.

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

member ActivityId : Guid with get

Property Value

Type: System.Guid

The activity ID on the thread that the event was written to.

Retrieving the value of the ActivityId property accesses thread local storage. This has the following implications:

  • The ActivityId field is valid only for the duration of the EventListener.OnEventWritten callback.

  • If the activity ID is changed during the callback, the activity ID returned by the ActivityId property is invalid.

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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