private void UpdateMenu()
        {
            _collectionMenu.Clear();

            try
            {
                _menuBusiness.GetAllMenus().ForEach(m => _collectionMenu.Add(m));
            }
            catch (Exception ex)
            {
                DialogService.ShowErrorWindow(ex.Message);
            }
        }
        public UserControlCafeteriaViewModel()
        {
            _platBusiness    = new PlatBusiness();
            _menuBusiness    = new MenuBusiness();
            _produitBusiness = new ProduitBusiness();

            _openDeletingMenuWindow    = new RelayCommand(() => DialogService.ShowYesNoWindow("Etes-vous sûr de vouloir supprimer ce menu ?", new Action(DeleteMenu)), o => true);
            _openDeletingPlatWindow    = new RelayCommand(() => DialogService.ShowYesNoWindow("Etes-vous sûr de vouloir supprimer ce plat ?", new Action(DeletePlat)), o => true);
            _openDeletingProduitWindow = new RelayCommand(() => DialogService.ShowYesNoWindow("Etes-vous sûr de vouloir supprimer ce produit ?", new Action(DeleteProduit)), o => true);

            _openAddingPlatWindow    = new RelayCommand(() => DialogGerant.ShowAjoutMenuView(), o => true);
            _openAddingMenuWindow    = new RelayCommand(() => DialogGerant.ShowAjoutPlatView(), o => true);
            _openAddingProduitWindow = new RelayCommand(() => DialogGerant.ShowAjoutProduitView(), o => true);

            _openModifyingMenuWindow    = new RelayCommand(() => DialogGerant.ShowModifMenuView(), o => true);
            _openModifyingPlatWindow    = new RelayCommand(() => DialogGerant.ShowModifPlatView(), o => true);
            _openModifyingProduitWindow = new RelayCommand(() => DialogGerant.ShowModifProduitView(), o => true);

            _duplicateMenuCommand = new RelayCommand(() => DialogService.ShowYesNoWindow("Etes-vous sûr de vouloir dupliquer ce menu ?", new Action(DuplicateMenu)), o => true);

            _addToMenusDuJour = new RelayCommand(() => AddToMenuDuJour(), o => true);

            Messenger.Default.Register <string>(this, (msg) => HandleMessage(msg));

            try
            {
                foreach (Plat plat in _platBusiness.GetAllPlat())
                {
                    _collectionPlat.Add(plat);
                }

                foreach (Menu menu in _menuBusiness.GetAllMenus())
                {
                    _collectionMenu.Add(menu);
                }

                foreach (Produit produit in _produitBusiness.GetAllProduits())
                {
                    _collectionProduit.Add(produit);
                }

                foreach (Menu menu in _menuBusiness.GetMenusDuJour())
                {
                    _collectionMenuDuJour.Add(menu);
                }
            }
            catch (Exception ex)
            {
                DialogService.ShowErrorWindow(ex.Message);
            }
        }