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UploadDataCompletedEventHandler Delegate

Note: This delegate is new in the .NET Framework version 2.0.

Represents the method that will handle the UploadDataCompleted event of a WebClient.

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

public delegate void UploadDataCompletedEventHandler (
	Object sender,
	UploadDataCompletedEventArgs e
)
/** @delegate */
public delegate void UploadDataCompletedEventHandler (
	Object sender, 
	UploadDataCompletedEventArgs e
)
JScript supports the use of delegates, but not the declaration of new ones.

Parameters

sender

The source of the event.

e

A UploadDataCompletedEventArgs containing event data.

When you create a UploadDataCompletedEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event handler delegates, see Events and Delegates.

The following code example demonstrates asynchronously uploading data.

public static void UploadDataInBackground2 (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);
    string method = "POST";

    client.UploadDataCompleted += new UploadDataCompletedEventHandler (UploadDataCallback2);
    client.UploadDataAsync (uri, method, data);
}


The following method is called when the upload completes.

public static void UploadDataCallback2 (Object sender, UploadDataCompletedEventArgs e)
{
    byte[] data = (byte[])e.Result;
    string reply = System.Text.Encoding.UTF8.GetString (data);

    Console.WriteLine (reply);
}


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

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

.NET Framework

Supported in: 2.0
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