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.NET Framework 3.5
 Decrypt Method
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
FormsAuthentication..::.Decrypt Method

Creates a FormsAuthenticationTicket object based on the encrypted forms-authentication ticket passed to the method.

Namespace:  System.Web.Security
Assembly:  System.Web (in System.Web.dll)
Visual Basic (Declaration)
Public Shared Function Decrypt ( _
    encryptedTicket As String _
) As FormsAuthenticationTicket
Visual Basic (Usage)
Dim encryptedTicket As String
Dim returnValue As FormsAuthenticationTicket

returnValue = FormsAuthentication.Decrypt(encryptedTicket)
C#
public static FormsAuthenticationTicket Decrypt(
    string encryptedTicket
)
Visual C++
public:
static FormsAuthenticationTicket^ Decrypt(
    String^ encryptedTicket
)
JScript
public static function Decrypt(
    encryptedTicket : String
) : FormsAuthenticationTicket

Parameters

encryptedTicket
Type: System..::.String
The encrypted authentication ticket.

Return Value

Type: System.Web.Security..::.FormsAuthenticationTicket
A FormsAuthenticationTicket object. If the encryptedTicket parameter is not a valid ticket, nullNothingnullptra null reference (Nothing in Visual Basic) is returned.
ExceptionCondition
ArgumentException

encryptedTicket is nullNothingnullptra null reference (Nothing in Visual Basic).

- or -

encryptedTicket is an empty string ("").

- or -

encryptedTicket is of an invalid format.

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, 1.1, 1.0
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