Xamarin / MAUI

using CodeBarreRFID.DAO;

using CodeBarreRFID.Model;

using CodeBarreRFID.View;

using CodeBarreRFID.ViewModel.Base;

using CommunityToolkit.Maui.Alerts;

using CommunityToolkit.Maui.Core;

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Input;

namespace CodeBarreRFID.ViewModel

{

    public class AnimalViewModel : BaseViewModel

    {

        #region Attributs

        private String animalRfid;

        private String animalCodeBarre;

        private int nbAnimaux;

        #endregion

        #region Commandes

        public ICommand AjouterCommand { get; private set; }

        public ICommand EffaceRFIDCommand { get; private set; }

        public ICommand EffaceCBCommand { get; private set; }

        #endregion

        #region Propriétés

        public String AnimalRfid

        {

            get { return animalRfid; }

            set

            {

                if (animalRfid != value)

                {

                    animalRfid = value;

                    OnPropertyChanged(nameof(AnimalRfid));

                    ((Command)AjouterCommand).ChangeCanExecute();

                }

            }

        }

        public string AnimalCodeBarre

        {

            get { return animalCodeBarre; }

            set

            {

                if (animalCodeBarre != value)

                {

                    animalCodeBarre = value;

                    OnPropertyChanged(nameof(AnimalCodeBarre));

                    ((Command)AjouterCommand).ChangeCanExecute();

                }

            }

        }

        public int NbAnimaux

        {

            get { return nbAnimaux; }

            set

            {

                if (nbAnimaux != value)

                {

                    nbAnimaux = value;

                    OnPropertyChanged(nameof(NbAnimaux));

                }

            }

        }

        #endregion

        #region Constructeurs

        public AnimalViewModel()

        {

            AnimalDAO.LoadFromCSV();

            NbAnimaux = AnimalDAO.ANIMAUX.Count;

            AjouterCommand = new Command(async () => await Ajouter(), CanAjouter);

            EffaceRFIDCommand = new Command(EffaceRFID);

            EffaceCBCommand = new Command(EffaceCB);

        }

        #endregion

        private async Task Ajouter()

        {

            IsBusy = true;

            await Task.Delay(100);

            Animal animal = new Animal();

            animal.RFID = AnimalRfid;

            animal.CodeBarre = AnimalCodeBarre;

            AnimalDAO.ANIMAUX.Add(animal);

            AnimalDAO.SaveToCSV();

            var toast = Toast.Make("Enregistrement OK",ToastDuration.Long, 14);

            await toast.Show();

            NbAnimaux = AnimalDAO.ANIMAUX.Count;

            AnimalRfid = "";

            AnimalCodeBarre = "";

            IsBusy = false;

        }

        public bool CanAjouter()

        {

            return !String.IsNullOrEmpty(AnimalRfid) && !String.IsNullOrEmpty(AnimalCodeBarre);

        }

        private void EffaceRFID()

        {

            AnimalRfid = "";

        }

        private void EffaceCB()

        {

            AnimalCodeBarre = "";

        }

    }

}