private void button_Save_Click(object sender, EventArgs e) { Model.Carrier carrier = new Model.Carrier( textBox1.Text, textBox2.Text, textBox3.Text ); if (cno != "") { if (carrier.Update()) { MessageBox.Show("Successful!", "Information", MessageBoxButtons.OK); Log.Add(Program.user.ID, "Update carrier " + cno + "."); this.Close(); } } else { if (carrier.Add()) { MessageBox.Show("Successful!", "Information", MessageBoxButtons.OK); Log.Add(Program.user.ID, "Add a carrier."); this.Close(); } } }