EventAttribute.Keywords Property

Definition

Namespace:

System.Diagnostics.Tracing

Assemblies:

netstandard.dll, System.Diagnostics.Tracing.dll

Source:

EventSource.cs

Gets or sets the keywords for the event.

C#

public System.Diagnostics.Tracing.EventKeywords Keywords { get; set; }

Property Value

EventKeywords

A bitwise combination of the enumeration values.

Examples

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

C#

public static 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;
}

C#

[Event(1, Message = "Application Failure: {0}", Level = EventLevel.Error, Keywords = Keywords.Diagnostic)]
public void Failure(string message) { WriteEvent(1, message); }

C#

[Event(2, Message = "Starting up.", Keywords = Keywords.Perf, Level = EventLevel.Informational)]
public void Startup() { WriteEvent(2); }

C#

[Event(3, Message = "loading page {1} activityID={0}", Opcode = EventOpcode.Start,
    Task = Tasks.Page, Keywords = Keywords.Page, Level = EventLevel.Informational)]
public void PageStart(int ID, string url) { if (IsEnabled()) WriteEvent(3, ID, url); }

Applies to