AuthenticationManager::Unregister Method (IAuthenticationModule^)


Removes the specified authentication module from the list of registered modules.

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

static void Unregister(
	IAuthenticationModule^ authenticationModule


Type: System.Net::IAuthenticationModule^

The IAuthenticationModule to remove from the list of registered modules.

Exception Condition

authenticationModule is null.


The specified IAuthenticationModule is not registered.

The Unregister method removes the specified authentication module 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 the specified authentication module from the list of registered modules. For a complete example, refer to the AuthenticationManager class.

// This is the program entry point. It allows the user to enter 
// her credentials and the Internet resource (Web page) to access.
// It also unregisters the standard and registers the customized basic 
// authentication.
static void Main()
   array<String^>^args = Environment::GetCommandLineArgs();
   if ( args->Length < 4 )

      // Read the user's credentials.
      uri = args[ 1 ];
      username = args[ 2 ];
      password = args[ 3 ];
      if ( args->Length == 4 )
               domain = String::Empty; // If the domain exists, store it. Usually the domain name
               domain = args[ 4 ];

      // is by default the name of the server hosting the Internet
      // resource.
      // Unregister the standard Basic authentication module.
      AuthenticationManager::Unregister( "Basic" );

      // Instantiate the custom Basic authentication module.
      CustomBasic^ customBasicModule = gcnew CustomBasic;

      // Register the custom Basic authentication module.
      AuthenticationManager::Register( customBasicModule );

      // Display registered Authorization modules.

      // Read the specified page and display it on the console.
      getPage( uri );



for executing unmanaged code. Associated enumeration: SecurityPermissionFlag.

.NET Framework
Available since 1.1
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