private void button2_Click(object sender, EventArgs e) { if (comboBox1.Text == "汽車") { ClsCar cc = new ClsCar(); TotalMile.Text = cc.ClsTools1(int.Parse(Miletext.Text), int.Parse(Oiltext.Text)).ToString(); } else if (comboBox1.Text == "船") { if (checkBox1.Checked == true) { ClsSailBoat csb = new ClsSailBoat(); TotalMile.Text = csb.ClsTools1(int.Parse(Miletext.Text), int.Parse(Oiltext.Text)).ToString(); } else { ClsBoat cb = new ClsBoat(); TotalMile.Text = cb.ClsTools1(int.Parse(Miletext.Text), int.Parse(Oiltext.Text)).ToString(); } } checkBox1.Enabled = false; // TotalMile.Text = ct.ClsTools1(int.Parse(Miletext.Text), int.Parse(Oiltext.Text)).ToString(); }
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { if (comboBox1.Text == "汽車") { ClsCar cc = new ClsCar(); } else if (comboBox1.Text == "船") { ClsBoat cb = new ClsBoat(); checkBox1.Enabled = true; } }