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HttpServerUtility.UrlTokenDecode Method

Decodes a URL string token to its equivalent byte array using base 64 digits.

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

static member UrlTokenDecode : 
        input:string -> byte[] 


Type: System.String
The URL string token to decode.

Return Value

Type: System.Byte[]
The byte array containing the decoded URL string token.


The value of the input parameter is a null reference (Nothing in Visual Basic).

The UrlTokenDecode method converts a URL string token, which encodes binary data as base 64 digits, to its equivalent byte array representation. Use the UrlTokenDecode method to decode tokens transmitted on the URL and encoded by using the UrlTokenEncode.

The UrlTokenDecode method will return an empty byte array if the input parameter has a length of less than one.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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