Xamarin / MAUI

using CodeBarreRFID.Model;

using CommunityToolkit.Maui.Storage;

using Microsoft.Maui.Storage;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Linq;

using System.Security.AccessControl;

using System.Text;

using System.Threading.Tasks;

namespace CodeBarreRFID.DAO

{

    public static class AnimalDAO

    {

        public static List<Animal> ANIMAUX;

        private static string repertoireSav = "/storage/emulated/0/Documents/";

        private static string fichierSav = repertoireSav+"animaux.csv";

        public static void SaveToCSV()

        {

            if (!Directory.Exists(repertoireSav)) Directory.CreateDirectory(repertoireSav);

            List<string> lignes = new List<string>();

            foreach (Animal item in ANIMAUX)

            {

                String ligne = item.RFID + ";" + item.CodeBarre;

                lignes.Add(ligne);

            }

            File.WriteAllLines(fichierSav, lignes.ToArray());

        }

        public static void LoadFromCSV()

        {

            Permissions.RequestAsync<Permissions.StorageRead>();

            Permissions.RequestAsync<Permissions.StorageWrite>();

            if (File.Exists(fichierSav))

            {

                ANIMAUX = File.ReadAllLines(fichierSav).Select(csv => new Animal(csv)).ToList();

            }else

            {

                ANIMAUX = new List<Animal>();

            }

        }

    }

}