private void Button_DangNhap(object sender, RoutedEventArgs e)
{
ManHinhChinh main = new ManHinhChinh();
this.Close();
main.Show();
}
private void Enter_down(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
ManHinhChinh main = new ManHinhChinh();
this.Close();
main.Show();
}
}
