IAuthenticationModule.PreAuthenticate(WebRequest, ICredentials) Metodo

Definizione

Restituisce un'istanza della classe Authorization per una richiesta di autenticazione a un server.Returns an instance of the Authorization class for an authentication request to a server.

public:
 System::Net::Authorization ^ PreAuthenticate(System::Net::WebRequest ^ request, System::Net::ICredentials ^ credentials);
public System.Net.Authorization PreAuthenticate (System.Net.WebRequest request, System.Net.ICredentials credentials);
abstract member PreAuthenticate : System.Net.WebRequest * System.Net.ICredentials -> System.Net.Authorization
Public Function PreAuthenticate (request As WebRequest, credentials As ICredentials) As Authorization

Parametri

request
WebRequest

L'istanza di WebRequest associata alla richiesta di autenticazione.The WebRequest instance associated with the authentication request.

credentials
ICredentials

Le credenziali associate alla richiesta di autenticazione.The credentials associated with the authentication request.

Restituisce

Un'istanza di Authorization contenente il messaggio di autorizzazione per la richiesta.An Authorization instance containing the authorization message for the request.

Esempi

Nell'esempio seguente viene illustrato come utilizzare il metodo PreAuthenticate.The following example shows how to use the PreAuthenticate method. Per un esempio completo, vedere la AuthenticationManager classe.For a complete example refer to the AuthenticationManager class.

// The PreAuthenticate method specifies if the authentication implemented
// by this class allows pre-authentication.
// Even if you do not use it, this method must be implemented to obey to the rules
// of interface implemebtation.
// In this case it always returns null.
virtual Authorization^ PreAuthenticate( WebRequest^ request, ICredentials^ credentials )
{
   return nullptr;
}


// The PreAuthenticate method specifies whether the authentication implemented 
// by this class allows pre-authentication. 
// Even if you do not use it, this method must be implemented to obey to the rules 
// of interface implementation.
// In this case it always returns null. 
public Authorization PreAuthenticate(WebRequest request, ICredentials credentials) 
{                
  return null;
}
' The PreAuthenticate method specifies whether the authentication implemented 
' by this class allows pre-authentication. 
' Even if you do not use it, this method must be implemented to obey to the rules 
' of interface implementation.
' In this case it always returns null. 
Public Function PreAuthenticate(ByVal request As WebRequest, ByVal credentials As ICredentials) As Authorization _
    Implements IAuthenticationModule.PreAuthenticate

  Return Nothing
End Function 'PreAuthenticate

Commenti

Quando la CanPreAuthenticate proprietà è true, il PreAuthenticate metodo restituirà un'istanza della Authorization classe contenente un messaggio di autenticazione.When the CanPreAuthenticate property is true, the PreAuthenticate method will return an instance of the Authorization class containing an authentication message.

Si applica a