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WebClient.UseDefaultCredentials Property

Gets or sets a Boolean value that controls whether the DefaultCredentials are sent with requests.

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

public bool UseDefaultCredentials { get; set; }
/** @property */
public boolean get_UseDefaultCredentials ()

/** @property */
public void set_UseDefaultCredentials (boolean value)

public function get UseDefaultCredentials () : boolean

public function set UseDefaultCredentials (value : boolean)

Not applicable.

Property Value

true if the default credentials are used; otherwise false. The default value is false.

Set this property to true when requests made by this WebClient object should, if requested by the server, be authenticated using the default credentials of the currently logged on user. For client applications, this is the desired behavior in most scenarios. For middle tier applications, such as ASP.NET applications, instead of using this property, you would typically set the Credentials property to the credentials of the client on whose behalf the request is made.

The following code example demonstrates setting this property.

// Sample call: UploadFileInBackground3("http://www.contoso.com/fileUpload.aspx", "data.txt")
public static void UploadFileInBackground3 (string address, string fileName)
{
    WebClient client = new WebClient ();

    Uri uri = new Uri(address);

    client.UseDefaultCredentials = true;
    client.UploadFileCompleted += new UploadFileCompletedEventHandler (UploadFileCallback2);
    client.UploadFileAsync (uri, fileName);
    Console.WriteLine ("File upload started.");
}


Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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