private void WebClient_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
Tuple <Label, Button, string> edt = e.UserState as Tuple <Label, Button, string>;
edt.Item1.Enabled = true;
edt.Item2.Enabled = true;
string strDir = Path.GetDirectoryName(edt.Item3);
TarFile.ExtractTarGz(edt.Item3, strDir);
edtCifarDataFile1.Text = strDir + "\\cifar-10-batches-bin\\data_batch_1.bin";
edtCifarDataFile2.Text = strDir + "\\cifar-10-batches-bin\\data_batch_2.bin";
edtCifarDataFile3.Text = strDir + "\\cifar-10-batches-bin\\data_batch_3.bin";
edtCifarDataFile4.Text = strDir + "\\cifar-10-batches-bin\\data_batch_4.bin";
edtCifarDataFile5.Text = strDir + "\\cifar-10-batches-bin\\data_batch_5.bin";
edtCifarDataFile6.Text = strDir + "\\cifar-10-batches-bin\\test_batch.bin";
}