Option Explicit
Option Strict
Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        ' Create the source, if it does not already exist.
        If Not EventLog.SourceExists("MySource") Then
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
        End If
        
        ' Create an EventLog instance and assign its source.
        Dim myLog As New EventLog()
        myLog.Source = "MySource"
        
        ' Write an informational entry to the event log.    
        myLog.WriteEntry("Writing to event log.")
        
        Console.WriteLine("Message written to event log.")
    End Sub
End Class

' 导入命名空间
Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        ' Create the source, if it does not already exist.
        If Not EventLog.SourceExists("MySource", "MyServer") Then
            EventLog.CreateEventSource("MySource", "MyNewLog", "MyServer")
            Console.WriteLine("CreatingEventSource")
        End If
        
        ' Create an EventLog instance and assign its source.
        Dim myLog As New EventLog()
        myLog.Source = "MySource"
        
        ' Write an informational entry to the event log.    
        myLog.WriteEntry("Writing to event log.")
        
        Console.WriteLine("Message written to event log.")
    End Sub
End Class

' 导入命名空间
Imports System.Diagnostics
public class Test
   Shared Dim logStatus As System.Diagnostics.EventLog = New System.Diagnostics.EventLog

   public Shared Sub Main
        
        If Not EventLog.SourceExists("StatusSource") Then
            EventLog.CreateEventSource("StatusSource", "StatusLog")
            Console.WriteLine("Creating event source")
        End If

        ' Set the EventLog component's source.
        logStatus.Source = "StatusSource"

        ' Write a Starting message to the log.
        ShowLog()
        logStatus.Clear()
        ShowLog()
   End Sub
    Private Shared Sub ShowLog()
        For Each log_entry As EventLogEntry In logStatus.Entries
            Console.WriteLine(log_entry.Message)
        Next log_entry
    End Sub
   
End class