private void pictureBox2_Click(object sender, EventArgs e)
{
Trangchu temp1 = new Trangchu();
temp1.Region = this.Region;
temp1.Show();
this.Hide();
}
private void btnQuayLai_Click(object sender, EventArgs e)
{
Trangchu temp1 = new Trangchu();
temp1.Region = this.Region;
temp1.Show();
this.Hide();
}
private void btnBack_Click(object sender, EventArgs e)
{
Trangchu fm = new Trangchu();
fm.Region = this.Region;
fm.Show();
this.Hide();
}