public Boolean add(Object o)
 {
     try
     {
         OleDbConnection cn = new OleDbConnection();
         cn.ConnectionString = Properties.Settings.Default.ch;
         OleDbCommand cmd      = new OleDbCommand();
         Utilisateur  u        = (Utilisateur)o;
         String       login    = u.compte.login;
         String       password = u.compte.password;
         String       nom      = u.nom;
         String       prenom   = u.prenom;
         String       mail     = u.mail;
         Cryptage     cr       = new Cryptage();
         string       req      = string.Format("Begin Inscrire('" + login + "','" + cr.Encrypt(password) + "','" + nom + "','" + prenom + "','" + mail + "'); end; ");
         cmd.Connection = cn;
         cn.Open();
         cmd.CommandText = req;
         cmd.ExecuteNonQuery();
         cn.Close();
         return(true);
     }
     catch (Exception)
     {
         return(false);
     }
 }