WebClient.UploadFileCompleted Événement
Définition
Important
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Se produit lorsqu’une opération de chargement de fichiers asynchrone se termine.
public:
event System::Net::UploadFileCompletedEventHandler ^ UploadFileCompleted;
public event System.Net.UploadFileCompletedEventHandler? UploadFileCompleted;
public event System.Net.UploadFileCompletedEventHandler UploadFileCompleted;
member this.UploadFileCompleted : System.Net.UploadFileCompletedEventHandler
Public Custom Event UploadFileCompleted As UploadFileCompletedEventHandler
Public Event UploadFileCompleted As UploadFileCompletedEventHandler
Type d'événement
Exemples
L’exemple de code suivant illustre la définition d’un gestionnaire d’événements pour cet événement.
// Sample call: UploadFileInBackground2("http://www.contoso.com/fileUpload.aspx", "data.txt")
void UploadFileInBackground2( String^ address, String^ fileName )
{
WebClient^ client = gcnew WebClient;
Uri ^uri = gcnew Uri(address);
client->UploadFileCompleted +=
gcnew UploadFileCompletedEventHandler (UploadFileCallback2);
// Specify a progress notification handler.
client->UploadProgressChanged +=
gcnew UploadProgressChangedEventHandler( UploadProgressCallback );
client->UploadFileAsync( uri, "POST", fileName );
Console::WriteLine( "File upload started." );
}
// Sample call: UploadFileInBackground2("http://www.contoso.com/fileUpload.aspx", "data.txt")
public static void UploadFileInBackground2(string address, string fileName)
{
WebClient client = new WebClient();
Uri uri = new Uri(address);
client.UploadFileCompleted += new UploadFileCompletedEventHandler(UploadFileCallback2);
// Specify a progress notification handler.
client.UploadProgressChanged += new UploadProgressChangedEventHandler(UploadProgressCallback);
client.UploadFileAsync(uri, "POST", fileName);
Console.WriteLine("File upload started.");
}
' Sample call: UploadFileInBackground2("http:' www.contoso.com/fileUpload.aspx", "data.txt")
Public Shared Sub UploadFileInBackground2(ByVal address As String, ByVal fileName As String)
Dim client As WebClient = New WebClient()
Dim uri as Uri = New Uri(address)
AddHandler client.UploadFileCompleted, AddressOf UploadFileCallback2
' Specify a progress notification handler.
AddHandler client.UploadProgressChanged, AddressOf UploadProgressCallback
client.UploadFileAsync(uri, "POST", fileName)
Console.WriteLine("File upload started.")
End Sub
L’exemple de code suivant montre une implémentation d’un gestionnaire pour cet événement.
void UploadFileCallback2( Object^ /*sender*/, UploadFileCompletedEventArgs^ e )
{
String^ reply = System::Text::Encoding::UTF8->GetString( e->Result );
Console::WriteLine( reply );
}
private static void UploadFileCallback2(Object sender, UploadFileCompletedEventArgs e)
{
string reply = System.Text.Encoding.UTF8.GetString(e.Result);
Console.WriteLine(reply);
}
Private Shared Sub UploadFileCallback2(ByVal sender As Object, ByVal e As System.Net.UploadFileCompletedEventArgs)
Dim reply As String = System.Text.Encoding.UTF8.GetString(e.Result)
Console.WriteLine(reply)
End Sub
Remarques
Prudence
WebRequest
, HttpWebRequest
, ServicePoint
et WebClient
sont obsolètes et vous ne devez pas les utiliser pour le nouveau développement. Utilisez HttpClient à la place.
Cet événement est déclenché chaque fois qu’une opération de chargement de fichier asynchrone se termine. Les chargements de fichiers asynchrones sont démarrés en appelant les méthodes UploadFileAsync.
Le UploadFileCompletedEventHandler est le délégué de cet événement. La classe UploadFileCompletedEventArgs fournit au gestionnaire d’événements des données d’événement.
Pour plus d’informations sur la gestion des événements, consultez Gestion et déclenchement d’événements.