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ServiceBase.EventLog Property

Gets an event log you can use to write notification of service command calls, such as Start and Stop, to the Application event log.

[Visual Basic]
Public Overridable ReadOnly Property EventLog As EventLog
public virtual EventLog EventLog {get;}
public: __property virtual EventLog* get_EventLog();
public function get EventLog() : EventLog;

Property Value

An EventLog instance whose source is registered to the Application log.


The constructor initializes the EventLog property to an instance with the EventLog.Source and EventLog.Log properties set. The source is the ServiceName of the service, and the log is the computer's Application log. These values are set automatically and cannot be changed for automatic logging of service commands.

When AutoLog is true, Start, Stop, Pause, Continue, and custom commands are recorded automatically in the Application event log. You can use the EventLog property to write additional messages to that log as well. The component calls EventLog.WriteEntry using this EventLog member.

If you want to write entries to an event log other than the application log, set AutoLog to false, instantiate a new EventLog in the constructor for your service component, and override the OnStart, OnStop, and other command-handling methods to explicitly post entries to that log. You cannot use this EventLog instance to write to logs other than the Application log.


Platforms: Windows NT Server 4.0, Windows NT Workstation 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

ServiceBase Class | ServiceBase Members | System.ServiceProcess Namespace | AutoLog | EventLog.Source | EventLog