private bool ValidationLogin()
        {
            string user       = StringNonVide(textBoxlogin, "Utilisateur");
            string passHashed = StringNonVide(textBoxPassword, "Mot de passe");
            Compte c          = RequetesSQL.SQLLogin(user, textBoxPassword.Text);

            if (c == null)
            {
                MB.Avertir("Authentification rejetée");
                return(false);
            }
            if (!Hashage.HashValide(textBoxPassword.Text, c.HashPass, HashType.Sha256))
            {
                MB.Avertir("Authentification rejetée");
                return(false);
            }
            return(LoggedUser.OuvrirSession(c.Matricule.ToString()));
        }