WebClient.OpenWriteCompleted Evento

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 

Tipo evento

OpenWriteCompletedEventHandler

Esempio

Nell'esempio di codice riportato di seguito viene illustrata l'impostazione di un gestore eventi per questo evento.The following code example demonstrates setting an event handler for this event.

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

Commenti

Questo evento viene generato ogni volta che viene completata un'operazione asincrona di apertura di un flusso utilizzato per inviare dati a una risorsa.This event is raised each time an asynchronous operation to open a stream that is used to send data to a resource completes. Queste operazioni vengono avviate chiamando i OpenWriteAsync metodi.These operations are started by calling the OpenWriteAsync methods.

OpenWriteCompletedEventHandlerÈ il delegato per questo evento.The OpenWriteCompletedEventHandler is the delegate for this event. La OpenWriteCompletedEventArgs classe fornisce il gestore eventi con i dati dell'evento.The OpenWriteCompletedEventArgs class provides the event handler with event data.

Per altre informazioni su come gestire gli eventi, vedere la gestione e generazione di eventi.For more information about how to handle events, see Handling and Raising Events.

Si applica a