WebClient.UploadDataCompleted Event

Definition

Namespace:

System.Net

Assembly:

System.Net.WebClient.dll

Source:

WebClient.cs

Occurs when an asynchronous data-upload operation completes.

public:
 event System::Net::UploadDataCompletedEventHandler ^ UploadDataCompleted;

public event System.Net.UploadDataCompletedEventHandler? UploadDataCompleted;

member this.UploadDataCompleted : System.Net.UploadDataCompletedEventHandler 

Public Custom Event UploadDataCompleted As UploadDataCompletedEventHandler 

Event Type

UploadDataCompletedEventHandler

Examples

The following code example demonstrates setting an event handler for this event.

void UploadDataInBackground3( String^ address )
{
   WebClient^ client = gcnew WebClient;
   Uri ^uri = gcnew Uri(address);
   String^ text = "Time = 12:00am temperature = 50";
   array<Byte>^data = System::Text::Encoding::UTF8->GetBytes( text );

   client->UploadDataCompleted += gcnew UploadDataCompletedEventHandler( UploadDataCallback3 );
   client->UploadDataAsync( uri, data );
}

public static void UploadDataInBackground3(string address)
{
    WebClient client = new WebClient();
    Uri uri = new Uri(address);
    string text = "Time = 12:00am temperature = 50";
    byte[] data = System.Text.Encoding.UTF8.GetBytes(text);

    client.UploadDataCompleted += new UploadDataCompletedEventHandler(UploadDataCallback3);
    client.UploadDataAsync(uri, data);
}

Public Shared Sub UploadDataInBackground3(ByVal address As String)

    Dim client As WebClient = New WebClient()
    Dim text As String = "Time = 12:00am temperature = 50"
    Dim data() As Byte = System.Text.Encoding.UTF8.GetBytes(text)
    AddHandler client.UploadDataCompleted, AddressOf UploadDataCallback3
                Dim uri as Uri = New Uri(address)
    client.UploadDataAsync(uri, data)
End Sub

The following code example shows an implementation of a handler for this event.

void UploadDataCallback3( Object^ /*sender*/, UploadDataCompletedEventArgs^ e )
{
   array<Byte>^data = dynamic_cast<array<Byte>^>(e->Result);
   String^ reply = System::Text::Encoding::UTF8->GetString( data );
   Console::WriteLine( reply );
}

private static void UploadDataCallback3(Object sender, UploadDataCompletedEventArgs e)
{
    byte[] data = (byte[])e.Result;
    string reply = System.Text.Encoding.UTF8.GetString(data);

    Console.WriteLine(reply);
}

Private Shared Sub UploadDataCallback3(ByVal sender As Object, ByVal e As UploadDataCompletedEventArgs)
    Dim data() As Byte = CType(e.Result, Byte())
    Dim reply As String = System.Text.Encoding.UTF8.GetString(data)
    Console.WriteLine(reply)
End Sub

Remarks

Caution

WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete, and you shouldn't use them for new development. Use HttpClient instead.

This event is raised each time an asynchronous data upload operation completes. Asynchronous data uploads are started by calling the UploadDataAsync methods.

The UploadDataCompletedEventHandler is the delegate for this event. The UploadDataCompletedEventArgs class provides the event handler with event data.

For more information about how to handle events, see Handling and Raising Events.