WebClient.OpenWriteCompleted Ereignis

Definition

Namespace:

System.Net

Assembly:

System.Net.WebClient.dll

Assembly:

System.dll

Assembly:

netstandard.dll

Tritt ein, wenn ein asynchroner Vorgang zum Öffnen eines Streams, der Daten in eine Ressource schreibt, abgeschlossen wird.

public:
 event System::Net::OpenWriteCompletedEventHandler ^ OpenWriteCompleted;

public event System.Net.OpenWriteCompletedEventHandler? OpenWriteCompleted;

public event System.Net.OpenWriteCompletedEventHandler OpenWriteCompleted;

member this.OpenWriteCompleted : System.Net.OpenWriteCompletedEventHandler 

Public Custom Event OpenWriteCompleted As OpenWriteCompletedEventHandler 

Public Event OpenWriteCompleted As OpenWriteCompletedEventHandler 

Ereignistyp

OpenWriteCompletedEventHandler

Beispiele

Im folgenden Codebeispiel wird das Festlegen eines Ereignishandlers für dieses Ereignis veranschaulicht.

void OpenResourceForWriting2( String^ address )
{
   WebClient^ client = gcnew WebClient;
   Uri ^uri = gcnew Uri(address);

   // Specify that the OpenWriteCallback method gets called
   // when the writeable stream is available.
   client->OpenWriteCompleted += gcnew OpenWriteCompletedEventHandler( OpenWriteCallback2 );
   client->OpenWriteAsync( uri, "POST" );

   // Applications can perform other tasks
   // while waiting for the upload to complete.
}

public static void OpenResourceForWriting2(string address)
{
    WebClient client = new WebClient();
    Uri uri = new Uri(address);

    // Specify that the OpenWriteCallback method gets called
    // when the writeable stream is available.
    client.OpenWriteCompleted += new OpenWriteCompletedEventHandler(OpenWriteCallback2);
    client.OpenWriteAsync(uri, "POST");
    // Applications can perform other tasks
    // while waiting for the upload to complete.
}

Public Shared Sub OpenResourceForWriting2(ByVal address As String)

    Dim client As WebClient = New WebClient()

    '  Specify that the OpenWriteCallback method gets called
    '  when the writeable stream is available.
    AddHandler client.OpenWriteCompleted, AddressOf OpenWriteCallback2
                Dim uri as Uri = New Uri(address)
    client.OpenWriteAsync(uri, "POST")
    '  Applications can perform other tasks
    '  while waiting for the upload to complete.
End Sub

Hinweise

Dieses Ereignis wird jedes Mal ausgelöst, wenn ein asynchroner Vorgang ausgelöst wird, um einen Datenstrom zu öffnen, der zum Senden von Daten an eine Ressource verwendet wird. Diese Vorgänge werden gestartet, indem Sie die OpenWriteAsync Methoden aufrufen.

Der OpenWriteCompletedEventHandler Stellvertretung für dieses Ereignis. Die OpenWriteCompletedEventArgs Klasse stellt den Ereignishandler mit Ereignisdaten bereit.

Weitere Informationen zum Behandeln von Ereignissen finden Sie unter behandeln und Auslösen von Ereignissen.