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WindowsIdentity Constructor (String, String)

Updated: December 2009

Initializes a new instance of the WindowsIdentity class for the user represented by the specified User Principal Name (UPN) and the specified authentication type.

Namespace:  System.Security.Principal
Assembly:  mscorlib (in mscorlib.dll)

public:
WindowsIdentity(
	String^ sUserPrincipalName, 
	String^ type
)

Parameters

sUserPrincipalName
Type: System::String

The UPN for the user on whose behalf the code is running.

type
Type: System::String

(Informational) The type of authentication used to identify the user.

ExceptionCondition
UnauthorizedAccessException

Windows returned the Windows NT status code STATUS_ACCESS_DENIED.

OutOfMemoryException

There is insufficient memory available.

SecurityException

The caller does not have the correct permissions.

The value of the type parameter is used to set the AuthenticationType parameter. If type is nullptr, the security system sets AuthenticationType to Negotiate on Windows Vista and later versions of the Windows operating system, and to Kerberos on earlier versions of the Windows operating system. The security system does not use this value; it is for informational use only.

The UPN identified in sUserPrincipalName is used to retrieve a token for that user through the Win32 API LsaLogonUser function. In turn that token is used to identify the user. An exception might be returned due to the inability to log on using the supplied UPN.

NoteNote:

This constructor is intended for use only on computers joined to Windows Server 2003 domains. An exception is thrown for other domain types.

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

Date

History

Reason

December 2009

Updated information about the type parameter.

Customer feedback.

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