private void button2_Click(object sender, EventArgs e) { frmHuongDan frm = new frmHuongDan(); frm.ShowDialog(); frm.Close(); frm.Dispose(); }
private void button2_Click(object sender, EventArgs e) { this.Hide(); frmHuongDan frm = new frmHuongDan(); frm.ShowDialog(); frm.Close(); frm.Dispose(); }