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AuthenticationManager.Unregister Method (String)

Removes authentication modules with the specified authentication scheme from the list of registered modules.

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

'Declaration
Public Shared Sub Unregister ( _
	authenticationScheme As String _
)
'Usage
Dim authenticationScheme As String 

AuthenticationManager.Unregister(authenticationScheme)

Parameters

authenticationScheme
Type: System.String

The authentication scheme of the module to remove.

ExceptionCondition
ArgumentNullException

authenticationScheme is Nothing.

InvalidOperationException

A module for this authentication scheme is not registered.

The Unregister method removes the authentication module with the specified authentication scheme from the list of authentication modules called by the Authenticate method. The module must have been added to the list using the Register method before it can be removed from the list.

The following example uses the Unregister method to remove an authentication module with the specified authentication scheme from the list of registered modules.

Dim registeredModules As IEnumerator = AuthenticationManager.RegisteredModules
DisplayAllModules()

registeredModules.Reset()
registeredModules.MoveNext()

'Get the first Authentication module registered with the system 
Dim authenticationModule1 As IAuthenticationModule = CType(registeredModules.Current, IAuthenticationModule)

'Call the UnRegister method to unregister the first authentication module from the system. 
Dim authenticationScheme As [String] = authenticationModule1.AuthenticationType
AuthenticationManager.Unregister(authenticationScheme)
Console.WriteLine(ControlChars.Cr + "Successfully unregistered {0}", authenticationModule1)
'Display all modules to see that the module was unregistered.
DisplayAllModules()
'Call the Register method to register authenticationModule1 module again.
AuthenticationManager.Register(authenticationModule1)
Console.WriteLine(ControlChars.Cr + "Successfully re-registered {0}", authenticationModule1)
'Display the modules to verify that 'authenticationModule1' has been registered again.
DisplayAllModules()
IEnumerator * registeredModules = AuthenticationManager::RegisteredModules; 
// Display all the modules that are already registered with the system.
DisplayAllModules();  
registeredModules->Reset();
registeredModules->MoveNext();
// Get the first Authentication module registered with the system.
IAuthenticationModule * authenticationModule1 = 
   dynamic_cast<IAuthenticationModule*>(registeredModules->Current);
// Call the UnRegister() method to unregister the first authentication module from the system.
String * authenticationScheme = authenticationModule1->AuthenticationType;
AuthenticationManager::Unregister(authenticationScheme);
Console::WriteLine("\nSuccessfully unregistered '{0}'.",authenticationModule1);
// Display all modules to see that the module was unregistered.
DisplayAllModules(); 

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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