Export (0) Print
Expand All
Expand Minimize
This topic has not yet been rated - Rate this topic

UploadDataCompletedEventHandler Delegate

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
)

Parameters

sender
Type: System.Object

The source of the event.

e
Type: System.Net.UploadDataCompletedEventArgs

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.

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

        Console.WriteLine (reply);
    }

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft. All rights reserved.