private void BtnIntroVideo_Click(object sender, RoutedEventArgs e)
{
eWMainWindow.Content = eWAccelerate;
eWAccelerate.HideAll();
eWAccelerate.gridIntro.Visibility = Visibility.Visible;
mediaAct.Play(eWAccelerate.videoIntro);
//Cap nhap ID cua vong hien tai
System.IO.StreamWriter streamWriter = new System.IO.StreamWriter("Round.txt");
streamWriter.Flush();
streamWriter.Write("3");
streamWriter.Close();
server.SendTSInfo(3, studentList);
}
