private void simpleButton6_Click(object sender, EventArgs e) { ThongtinKH f = new ThongtinKH(this, null, null); //txtmakh.Text = MaKH; f.Show(); }
private void simpleButton6_Click(object sender, EventArgs e) { ThongtinKH f = new ThongtinKH(null, null, this); f.Show(); }