gistfile1.cs

 private void InitialTransferStatusCheck()
        {
            UpdateRequestsList();

            foreach (var transfer in transferRequests)
            {
                ////監控傳輸狀態
                transfer.TransferStatusChanged += new EventHandler<BackgroundTransferEventArgs>(transfer_TransferStatusChanged);
                transfer.TransferProgressChanged += new EventHandler<BackgroundTransferEventArgs>(transfer_TransferProgressChanged);
                ProcessTransfer(transfer);
            }

            ...
        }