How to use the AuthenticationMethod enum to stop non-password logins

If, during the PreAuthenticationEvent, I see the AuthenticationMethod to Password, does this block of fail any login attempt that doesn't send in a pasword? I've tried it, and I still hit the Authentication event. I stop it there by checking the password myself, but is there a way to set it so that if a login attempt comes in with no password, that the Authentication event is never hit and it's stopped during PreAuthentication?

Simply just allow anyone who sends password on PreAuthenticationEvent: public static void PreAuthenticationEvent(object sender, PreAuthenticationEventArgs stuff) { Console.WriteLine(string.Format($"Pre-Authenticating user {stuff.UserName}")); //return null; stuff.Accept(AuthenticationMethods.Password); }