IAuthenticationModule.PreAuthenticate(WebRequest, ICredentials) Méthode
Définition
Important
Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.
Retourne une instance de la classe Authorization pour une demande d'authentification adressée à un serveur.
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);public System.Net.Authorization PreAuthenticate (System.Net.WebRequest request, System.Net.ICredentials credentials);abstract member PreAuthenticate : System.Net.WebRequest * System.Net.ICredentials -> System.Net.AuthorizationPublic Function PreAuthenticate (request As WebRequest, credentials As ICredentials) As AuthorizationParamètres
- request
- WebRequest
Instance de WebRequest associée à la demande d'authentification.
- credentials
- ICredentials
Informations d'identification associées à la demande d'authentification.
Retours
Instance de Authorization contenant le message d'autorisation lié à la demande.
Exemples
L'exemple suivant illustre l'utilisation de la méthode PreAuthenticate. Pour obtenir un exemple complet, reportez-vous à la AuthenticationManager classe .
// 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
Remarques
Lorsque la propriété a la CanPreAuthenticate valeur , la PreAuthenticate méthode retourne une instance de la Authorization classe contenant un message trued’authentification.
