UploadStringCompletedEventArgs Class
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UploadStringCompletedEventArgs Class

Provides data for the UploadStringCompleted event.

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

public class UploadStringCompletedEventArgs : AsyncCompletedEventArgs

Instances of this class are passed to the UploadStringCompletedEventHandler.

The following code example demonstrates asynchronously uploading a string.

public static void UploadStringInBackground2 (string address)
    WebClient client = new WebClient ();
    Uri uri = new Uri(address);
    string data = "Time = 12:00am temperature = 50";
    client.UploadStringCompleted += new UploadStringCompletedEventHandler (UploadStringCallback2);
    client.UploadStringAsync (uri, data);
void UploadStringInBackground2 (String* address)
    WebClient* client = new WebClient ();
    String* data = S"Time = 12:00am temperature = 50";
    client->UploadStringCompleted += new UploadStringCompletedEventHandler (UploadStringCallback2);
    client->UploadStringAsync (address, data);

The following method is called when the upload completes.

private static void UploadStringCallback2 (Object sender, UploadStringCompletedEventArgs e)
        string reply = (string)e.Result;
        Console.WriteLine (reply);
void UploadStringCallback2 (Object* /*sender*/, UploadStringCompletedEventArgs* e)
    String* reply = dynamic_cast<String*>(e->Result);
    Console::WriteLine (reply);


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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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