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EntryWrittenEventArgs Class

Provides data for the EntryWritten event.

Namespace: System.Diagnostics
Assembly: System (in system.dll)

public class EntryWrittenEventArgs : EventArgs
public class EntryWrittenEventArgs extends EventArgs
public class EntryWrittenEventArgs extends EventArgs
Not applicable.

The following example demonstrates the EntryWrittenEventArgs constructor. It creates a custom EventLog object and writes an entry into it. Then it creates an EntryWrittenEventArgs object using the first entry in the custom EventLog. This object is used to notify a message.

using System;
using System.Diagnostics;

class MySample
{
    public static void Main()
    {
        try
        {
            EventLog myNewLog = new EventLog();
            myNewLog.Log = "MyNewLog";
            myNewLog.Source = "MySource";
            // Create the source if it does not exist already.
            if (!EventLog.SourceExists("MySource"))
            {
                // An event log source should not be created and immediately used.
                // There is a latency time to enable the source, it should be created
                // prior to executing the application that uses the source.
                // Execute this sample a second time to use the new source.
                EventLog.CreateEventSource("MySource", "MyNewLog");
                Console.WriteLine("CreatingEventSource");
                Console.WriteLine("Exiting, execute the application a second time to use the source.");
                // The source is created.  Exit the application to allow it to be registered.
                return;
            }
            // Write an entry to the EventLog.
            myNewLog.WriteEntry("The Latest entry in the Event Log");
            int myEntries = myNewLog.Entries.Count;
            EventLogEntry entry = myNewLog.Entries[myEntries - 1];
            EntryWrittenEventArgs myEntryEventArgs =
                                 new EntryWrittenEventArgs();
            MyOnEntry(myNewLog, myEntryEventArgs);
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception Raised" + e.Message);
        }
    }
    protected static void MyOnEntry(Object source, EntryWrittenEventArgs e)
    {
        if (e.Entry == null)
            Console.WriteLine("A new entry is written in MyNewLog.");
    }
}

import System.*;
import System.Diagnostics.*;

class MySample
{
    public static void main(String[] args)
    {
        try {
            EventLog myNewLog = new EventLog();
            myNewLog.set_Log("MyNewLog");
            myNewLog.set_Source("MySource");

            // Create the source if it does not exist already.
            if (!(EventLog.SourceExists("MySource"))) {
                EventLog.CreateEventSource("MySource", "MyNewLog");
                Console.WriteLine("CreatingEventSource");
            }
            // Write an entry to the EventLog.
            myNewLog.WriteEntry("The Latest entry in the Event Log");
            int myEntries = myNewLog.get_Entries().get_Count();
            EventLogEntry entry = myNewLog.get_Entries().
                get_Item((myEntries - 1));
            EntryWrittenEventArgs myEntryEventArgs = new EntryWrittenEventArgs();
            MyOnEntry(myNewLog, myEntryEventArgs);
        }
        catch (System.Exception e) {
            Console.WriteLine("Exception Raised" + e.get_Message());
        }
    } //main

    private static void MyOnEntry(Object source, EntryWrittenEventArgs e)
    {
        if (e.get_Entry() == null) {
            Console.WriteLine("A new entry is written in MyNewLog.");
        }
    } //MyOnEntry
} //MySample

System.Object
   System.EventArgs
    System.Diagnostics.EntryWrittenEventArgs

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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