public ActionResult Parametrage()
 {
     var model = new ParametrageModel
     {
         Duration = _parametrageService.LoadDuration(),
     };
     return View(model);
 }
        public ActionResult Parametrage(ParametrageModel model)
        {
            if (!ModelState.IsValid)
            {
                return View(new ParametrageModel
                {
                    Duration = model.Duration,
                    Result = "La durée n'est pas valide"
                });
            }

            _parametrageService.SaveDuration(model.Duration);
            model.Result = "Paramétrage sauvegardé";

            return View(model);
        }