private void PopulateDishes()
        {
            IQueryable <GetUnwishedDish_Result> dishes;

            using (ProjetSGBDEntities context = new ProjetSGBDEntities()) {
                dishes = context.GetUnwishedDish(CurrentClient.Id);
                foreach (GetUnwishedDish_Result dish in dishes)
                {
                    comboBoxDishes.Items.Add(new DishWishSelection(dish.DishId, dish.DisplayName()));
                }
                comboBoxDishes.DisplayMember = "DisplayName";
            }
        }