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WebClient.Credentials Property

Gets or sets the network credentials that are sent to the host and used to authenticate the request.

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

public ICredentials Credentials { get; set; }

Property Value

Type: System.Net.ICredentials
An ICredentials containing the authentication credentials for the request. The default is null.

The Credentials property contains the authentication credentials used to access a resource on a host. In most client-side scenarios, you should use the DefaultCredentials, which are the credentials of the currently logged on user. To do this, set the UseDefaultCredentials property to true instead of setting this property.

If the WebClient class is being used in a middle tier application, such as an ASP.NET application, the DefaultCredentials belong to the account running the ASP page (the server-side credentials). Typically, you would set this property to the credentials of the client on whose behalf the request is made.

The following code example uses the user's system credentials to authenticate a request.

	public static void Main()
	{           
		try {

			WebClient client = new WebClient();

  			client.Credentials = CredentialCache.DefaultCredentials;
	
			Byte[] pageData = client.DownloadData("http://www.contoso.com");
			string pageHtml = Encoding.ASCII.GetString(pageData);
			Console.WriteLine(pageHtml);

		} catch (WebException webEx) {
			Console.Write(webEx.ToString());
		}
	}    

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

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.

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