private void button5_Click_1(object sender, EventArgs e)
{
FormQLChuyenXe frmcx = new FormQLChuyenXe();
this.Hide();
frmcx.ShowDialog();
this.Show();
}
private void button3_Click(object sender, EventArgs e)
{
FormQLChuyenXe frm1 = new FormQLChuyenXe();
frm1.Show();
}
