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EventLog.EnableRaisingEvents Property

Gets or sets a value indicating whether the EventLog receives EntryWritten event notifications.

[Visual Basic]
Public Property EnableRaisingEvents As Boolean
public bool EnableRaisingEvents {get; set;}
public: __property bool get_EnableRaisingEvents();
public: __property void set_EnableRaisingEvents(bool);
public function get EnableRaisingEvents() : Boolean;
public function set EnableRaisingEvents(Boolean);

Property Value

true if the EventLog receives notification when an entry is written to the log; otherwise, false.


The EnableRaisingEvents property determines whether the EventLog raises events when entries are written to the log. When the property is true, components receiving the EntryWritten event will receive notification any time an entry is written to the log specified in the Log property. If EnableRaisingEvents is false, no events are raised.


[Visual Basic, C#, C++] The following example handles an EntryWritten event.

[Visual Basic] 
Option Strict
Option Explicit

Imports System
Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        Dim myNewLog As New EventLog()
        myNewLog.Log = "MyCustomLog"
        AddHandler myNewLog.EntryWritten, AddressOf MyOnEntryWritten
        myNewLog.EnableRaisingEvents = True
        Console.WriteLine("Press 'q' to quit.")
        ' Wait for the EntryWrittenEvent or a quit command.
        While Char.ToLower(Convert.ToChar(Console.Read()))<>"q"
            ' Wait.
        End While 
    End Sub ' Main
    Public Shared Sub MyOnEntryWritten(source As Object, e As EntryWrittenEventArgs)
        Console.WriteLine(("Written: " + e.Entry.Message))
    End Sub ' MyOnEntryWritten
End Class ' MySample

using System;
using System.Diagnostics;
using System.Threading;
class MySample{

    public static void Main(){
        EventLog myNewLog = new EventLog();
        myNewLog.Log = "MyCustomLog";                      
        myNewLog.EntryWritten += new EntryWrittenEventHandler(MyOnEntryWritten);
        myNewLog.EnableRaisingEvents = true;
        Console.WriteLine("Press \'q\' to quit.");
        // Wait for the EntryWrittenEvent or a quit command.
        while(Console.Read() != 'q'){
            // Wait.

    public static void MyOnEntryWritten(Object source, EntryWrittenEventArgs e){
        Console.WriteLine("Written: " + e.Entry.Message);

#using <mscorlib.dll>
#using <System.dll>
using namespace System;
using namespace System::Diagnostics;
using namespace System::Threading;

__gc class MySample{
    static void MyOnEntryWritten(Object* /*source*/, EntryWrittenEventArgs* e){
        Console::WriteLine(S"Written: {0}", e->Entry->Message);

int main(){

    EventLog* myNewLog = new EventLog();
    myNewLog->Log = S"MyCustomLog";                      

    myNewLog->EntryWritten += new EntryWrittenEventHandler(0, MySample::MyOnEntryWritten);
    myNewLog->EnableRaisingEvents = true;

    Console::WriteLine(S"Press \'q\' to quit.");
    // Wait for the EntryWrittenEvent or a quit command.
    while(Console::Read() != 'q'){
        // Wait.

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.


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

EventLog Class | EventLog Members | System.Diagnostics Namespace | EntryWritten