private void button1_Click(object sender, EventArgs e) { this.Hide(); FormKhachHang fkh = new FormKhachHang(); fkh.ShowDialog(); }
private void butKhachHang_Click(object sender, EventArgs e) { FormKhachHang frm = new FormKhachHang(); frm.ShowDialog(); frm.Close(); frm.Dispose(); }