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WebClient.DownloadFileCompleted Event

Occurs when an asynchronous file download operation completes.

Namespace:  System.Net
Assembly:  System (in System.dll)

'Declaration
Public Event DownloadFileCompleted As AsyncCompletedEventHandler
'Usage
Dim instance As WebClient 
Dim handler As AsyncCompletedEventHandler 

AddHandler instance.DownloadFileCompleted, handler

This event is raised each time an asynchronous file download operation completes. Asynchronous file downloads are started by calling the DownloadFileAsync methods.

The AsyncCompletedEventHandler is the delegate for this event. The AsyncCompletedEventArgs class provides the event handler with event data.

For more information about handling events, see Consuming Events.

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

		'  Sample call : DownLoadFileInBackground2 ("http:' www.contoso.com/logs/January.txt") 
		Public Shared Sub DownLoadFileInBackground2(ByVal address As String)

			Dim client As WebClient = New WebClient()

			'  Specify that the DownloadFileCallback method gets called 
			'  when the download completes. 
			AddHandler client.DownloadFileCompleted, AddressOf DownloadFileCallback2
			'  Specify a progress notification handler. 
			AddHandler client.DownloadProgressChanged, AddressOf DownloadProgressCallback
                        Dim uri as Uri = New Uri(address)
			client.DownloadFileAsync(uri, "serverdata.txt")
		End Sub
// Sample call : DownLoadFileInBackground2 ("http://www.contoso.com/logs/January.txt");
void DownLoadFileInBackground2 (String* address)
{
    WebClient* client = new WebClient ();

    // Specify that the DownloadFileCallback method gets called
    // when the download completes.
    client->DownloadFileCompleted += new AsyncCompletedEventHandler (DownloadFileCallback2);
    // Specify a progress notification handler.
    client->DownloadProgressChanged += new DownloadProgressEventHandler(DownloadProgressCallback);
    client->DownloadFileAsync (address, S"serverdata.txt");
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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