private void TransportWorker_DoWork(object sender, DoWorkEventArgs args)
        {
            var transport = SharedData.Instance.Transport;

            transport.ProgressChanged += transport_ProgressChanged;
            try
            {
                transport.Execute(TransportWorker);
            }
            finally
            {
                transport.ProgressChanged -= transport_ProgressChanged;
            }

            if (TransportWorker.CancellationPending)
            {
                args.Cancel = true;
                return;
            }
            TransportWorker.ReportProgress(1000);
        }
 private void transport_ProgressChanged(object sender, ProgressChangedEventArgs args)
 {
     TransportWorker.ReportProgress(args.ProgressPercentage);
 }