EntryWrittenEventArgs Costruttori

Definizione

Spazio dei nomi:

System.Diagnostics

Assembly:

System.Diagnostics.EventLog.dll

Pacchetto:

System.Diagnostics.EventLog v8.0.0

Inizializza una nuova istanza della classe EntryWrittenEventArgs.

Overload

EntryWrittenEventArgs()	Inizializza una nuova istanza della classe EntryWrittenEventArgs.
EntryWrittenEventArgs(EventLogEntry)	Consente di inizializzare una nuova istanza della classe EntryWrittenEventArgs con la voce del log eventi specificata.

EntryWrittenEventArgs()

Origine:

EntryWrittenEventArgs.cs

Inizializza una nuova istanza della classe EntryWrittenEventArgs.

public:
 EntryWrittenEventArgs();

public EntryWrittenEventArgs ();

Public Sub New ()

Esempio

Nell'esempio seguente viene illustrato il EntryWrittenEventArgs costruttore . Crea un oggetto personalizzato EventLog e vi scrive una voce. Crea quindi un EntryWrittenEventArgs oggetto usando la prima voce nell'oggetto personalizzato EventLog. Questo oggetto viene utilizzato per notificare un messaggio.

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;

void MyOnEntry( Object^ source, EntryWrittenEventArgs^ e )
{
   if ( !e->Entry )
      Console::WriteLine( "A new entry is written in MyNewLog." );
}

int main()
{
   try
   {
      EventLog^ myNewLog = gcnew EventLog;
      myNewLog->Log = "MyNewLog";
      myNewLog->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->Entries->Count;
      EventLogEntry^ entry = myNewLog->Entries[ myEntries - 1 ];
      EntryWrittenEventArgs^ myEntryEventArgs = gcnew EntryWrittenEventArgs;
      MyOnEntry( myNewLog, myEntryEventArgs );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception Raised{0}", e->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.");
    }
}

Imports System.Diagnostics

Class MySample
   Public Shared Sub Main()
      Try
         Dim myNewLog As New EventLog()
         myNewLog.Log = "MyNewLog"
         myNewLog.Source = "MySource"
         ' Create the source if it does not exist already.
         If Not EventLog.SourceExists("MySource") Then
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
         End If
         ' Write an entry to the EventLog.
         myNewLog.WriteEntry("The Latest entry in the Event Log")
         Dim myEntryEventArgs As EntryWrittenEventArgs = _
                                    New EntryWrittenEventArgs()
         MyOnEntry(myNewLog, myEntryEventArgs)
      Catch e As Exception
         Console.WriteLine("Exception Raised" + e.Message)
      End Try
   End Sub
   Protected Shared Sub MyOnEntry(ByVal source As Object, _
                                  ByVal e As EntryWrittenEventArgs)
      If e.Entry Is Nothing Then
          Console.WriteLine("A new entry is written in MyNewLog.")
      End If
   End Sub
End Class

EntryWrittenEventArgs(EventLogEntry)

Origine:

EntryWrittenEventArgs.cs

Consente di inizializzare una nuova istanza della classe EntryWrittenEventArgs con la voce del log eventi specificata.

public:
 EntryWrittenEventArgs(System::Diagnostics::EventLogEntry ^ entry);

public EntryWrittenEventArgs (System.Diagnostics.EventLogEntry entry);

new System.Diagnostics.EntryWrittenEventArgs : System.Diagnostics.EventLogEntry -> System.Diagnostics.EntryWrittenEventArgs

Public Sub New (entry As EventLogEntry)

Parametri

entry

EventLogEntry

EventLogEntry che rappresenta la voce scritta.

Esempio

Nell'esempio seguente viene illustrato il EntryWrittenEventArgs costruttore . Crea un oggetto personalizzato EventLog e vi scrive una voce. Crea quindi un EntryWrittenEventArgs oggetto usando la prima voce nell'oggetto personalizzato EventLog. Questo oggetto viene utilizzato per notificare un messaggio.

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;

void MyOnEntry( Object^ source, EntryWrittenEventArgs^ e )
{
   EventLogEntry^ myEventLogEntry = e->Entry;
   if ( myEventLogEntry )
   {
      Console::WriteLine( "Current message entry is: '{0}'", myEventLogEntry->Message );
   }
   else
   {
      Console::WriteLine( "The current entry is null" );
   }
}

int main()
{
   try
   {
      EventLog^ myNewLog = gcnew EventLog;
      myNewLog->Log = "MyNewLog";
      myNewLog->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->Entries->Count;
      EventLogEntry^ entry = myNewLog->Entries[ myEntries - 1 ];
      EntryWrittenEventArgs^ myEntryEventArgs = gcnew EntryWrittenEventArgs( entry );
      MyOnEntry( myNewLog, myEntryEventArgs );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception Raised {0}", e->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(entry);
            MyOnEntry(myNewLog, myEntryEventArgs);
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception Raised" + e.Message);
        }
    }
    protected static void MyOnEntry(Object source, EntryWrittenEventArgs e)
    {
        EventLogEntry myEventLogEntry = e.Entry;
        if (myEventLogEntry != null)
        {
            Console.WriteLine("Current message entry is: '"
                              + myEventLogEntry.Message + "'");
        }
        else
        {
            Console.WriteLine("The current entry is null");
        }
    }
}

Imports System.Diagnostics

Class MySample
   Public Shared Sub Main()
      Try
         Dim myNewLog As New EventLog()
         ' Create the source if it does not exist already.
         If Not EventLog.SourceExists("MySource") Then
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
         End If
         myNewLog.Log = "MyNewLog"
         myNewLog.Source = "MySource"
         ' Write an entry to the EventLog.
         myNewLog.WriteEntry("The Latest entry in the Event Log")

         Dim myEntries As Integer = myNewLog.Entries.Count
         Dim entry As EventLogEntry = myNewLog.Entries(myEntries - 1)
         Dim myEntryEventArgs As New EntryWrittenEventArgs(entry)
         MyOnEntry(myNewLog, myEntryEventArgs)
      Catch e As Exception
         Console.WriteLine("Exception Raised" + e.Message)
      End Try
   End Sub

   Protected Shared Sub MyOnEntry(source As Object, e As EntryWrittenEventArgs)
      Dim myEventLogEntry As EventLogEntry = e.Entry
      If Not (myEventLogEntry Is Nothing) Then
         Console.WriteLine("Current message entry is: '" + _
                                             myEventLogEntry.Message + "'")
      Else
         Console.WriteLine("The current entry is null")
      End If
   End Sub
End Class