EventKeywords Enumeration

.NET Framework (current version)

Defines the standard keywords that apply to events.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

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

public enum EventKeywords

Member nameDescription

All the bits are set to 1, representing every possible group of events.


Attached to all failed security audit events. Use this keyword only for events in the security log.


Attached to all successful security audit events. Use this keyword only for events in the security log.


Attached to transfer events where the related activity ID (correlation ID) is a computed value and is not guaranteed to be unique (that is, it is not a real GUID).


Attached to events that are raised by using the RaiseEvent function.


Attached to all Microsoft telemetry events.


No filtering on keywords is performed when the event is published.


Attached to all Service Quality Mechanism (SQM) events.


Attached to all Windows Diagnostics Infrastructure (WDI) context events.


Attached to all Windows Diagnostics Infrastructure (WDI) diagnostic events.

You can customize the meaning of a keyword by assigning different names to the flags.

The following example shows how to use the EventKeywords class to redefine event keywords. This code example is part of a larger example provided for the EventSource class.

public class Keywords
    public const EventKeywords Page = (EventKeywords)1;
    public const EventKeywords DataBase = (EventKeywords)2;
    public const EventKeywords Diagnostic = (EventKeywords)4;
    public const EventKeywords Perf = (EventKeywords)8;

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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