private void OnCreatedPagato(object source, FileSystemEventArgs e)
        {
            Debug.Log("CashmaticApp", "OnCreatedPagato");
            FileInfo file = new FileInfo(e.FullPath);


            while (Helper.isFileLocked(file))
            {
                Thread.Sleep(50);
            }
            try
            {
                int pagato = CashmaticCommands.ReadPagato();
                if (pagato == Global.subtotale)
                {
                    file.Delete();
                    StopListeners();
                    Application.Current.Dispatcher.BeginInvoke(
                        DispatcherPriority.Background, new Action(() => Application.Current.MainWindow.Content = new ThankYouCash(_ob)));
                }
            }
            catch (Exception ex)
            {
                Debug.Log("CashmaticApp", ex.ToString());
            }
        }
        private void OnErogazioneChange(object source, FileSystemEventArgs e)
        {
            Debug.Log("CashmaticApp", "OnErogazioneChange");
            FileInfo file = new FileInfo(e.FullPath);

            while (Helper.isFileLocked(file))
            {
                Thread.Sleep(50);
            }
            try
            {
                int saldato    = CashmaticCommands.ReadSaldato();
                int erogazione = CashmaticCommands.ReadErogazione();
                int pagato     = CashmaticCommands.ReadPagato();
                saldato = (Global.subtotale - saldato);

                if (saldato < 0)
                {
                    saldato = saldato * -1;
                }
                saldato = saldato - erogazione;

                Application.Current.Dispatcher.BeginInvoke(
                    DispatcherPriority.Background, new Action(() => tblPrice.Text = String.Format("{0:0.00}€", saldato / (double)100)));

                pagato = pagato - erogazione;

                if (pagato == Global.subtotale)
                {
                    file.Delete();
                    StopListeners();
                    Application.Current.Dispatcher.BeginInvoke(
                        DispatcherPriority.Background, new Action(() => Application.Current.MainWindow.Content = new ThankYouCash(_ob)));
                }
            }
            catch (Exception ex)
            {
                Debug.Log("CashmaticApp", ex.ToString());
            }
        }