带有单选按钮的 C# 多项选择题

Question

所以我是编程新手，仍在学习我必须创建多项选择题，所以我制作了一种输出问题和答案的方法，但如果单击按钮检查，我不知道如何验证我的答案。

public partial class Form1: Form
{
public Form1()
{
InitializeComponent();
}
private void PresentQuestion()
{
radioButton1.Checked = false;
radioButton2.Checked = false;
radioButton3.Checked = false;
radioButton4.Checked = false;
Random rand = new Random();
int cycles = rand.Next(1, 4);
switch (cycles)
{
case 1:
textBox1.Text = "what is 15 - 8 ?";

radioButton1.Text = "A. 6";
radioButton2.Text = "B. 7";
radioButton3.Text = "C. 5";
radioButton4.Text = "D. 4";
break;
case 2:
textBox1.Text = "what is 5 x 5?";
radioButton1.Text = "A. 25";
radioButton2.Text = "B. 50";
radioButton3.Text = "C. 20";
radioButton4.Text = "D. 100";

break;
case 3:
textBox1.Text = "what is 4+4?";
radioButton1.Text = "A. 4";
radioButton2.Text = "B. 2";
radioButton3.Text = "C. 2";
radioButton4.Text = "D. 8";
break;
}
}

private void Form1_Load(object sender, EventArgs e)
{
PresentQuestion();
}
private void buttonCheck_Click(object sender, EventArgs e)
{
PresentQuestion();

}
}

}

Answer 1

Try this ...
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
int cycles = 0;
private void PresentQuestion(int cycles)
{
switch (cycles)
{
case 1:
textBox1.Text = "what is 15 - 8 ?";
radioButton1.Text = "A. 6";
radioButton2.Text = "B. 7";
radioButton3.Text = "C. 5";
radioButton4.Text = "D. 4";
break;
case 2:
textBox1.Text = "what is 5 x 5?";
radioButton1.Text = "A. 25";
radioButton2.Text = "B. 50";
radioButton3.Text = "C. 20";
radioButton4.Text = "D. 100";

break;
case 3:
textBox1.Text = "what is 2+2?";
radioButton1.Text = "A. 4";
radioButton2.Text = "B. 2";
radioButton3.Text = "C. 2";
radioButton4.Text = "D. 8";
break;
}
}
private void Button1_Click(object sender, EventArgs e)
{
switch (cycles)
{
case 1:
if(radioButton2.Checked)
{
MessageBox.Show("correct");
}
else
{
MessageBox.Show("wrong");
}
break;
case 2:
if (radioButton1.Checked)
{
MessageBox.Show("correct");
}
else
{
MessageBox.Show("wrong");
}
break;
case 3:
if (radioButton1.Checked)
{
MessageBox.Show("correct");
}
else
{
MessageBox.Show("wrong");
}
break;
}
}
private void Form1_Load(object sender, EventArgs e)
{
radioButton1.Checked = false;
radioButton2.Checked = false;
radioButton3.Checked = false;
radioButton4.Checked = false;
Random rand = new Random();
cycles = rand.Next(1, 4);
PresentQuestion(cycles);
}
}

Answer 2

public partial class Form1 : Form
{
int total = 0;
public Form1()
{
InitializeComponent();
}
private void PresentQuestion()
{
radioButton1.Checked = false;
radioButton2.Checked = false;
radioButton3.Checked = false;
radioButton4.Checked = false;
Random rand = new Random();
int cycles = rand.Next(1, 4);
switch (cycles)
{
case 1:
textBox1.Text = "what is 15 - 8 ?";
total = 15 - 8;
radioButton1.Text = "6";
radioButton2.Text = "7";
radioButton3.Text = "5";
radioButton4.Text = "4";
break;
case 2:
textBox1.Text = "what is 5 x 5?";
total = 5 * 5;
radioButton1.Text = "25";
radioButton2.Text = "50";
radioButton3.Text = "20";
radioButton4.Text = "100";

break;
case 3:
textBox1.Text = "what is 2+2?";
total = 2 + 2;
radioButton1.Text = "4";
radioButton2.Text = "2";
radioButton3.Text = "2";
radioButton4.Text = "8";
break;
}
}
private bool CheckOFResult()
{
foreach(Control r in this.Controls)
{
if(r.GetType() == typeof(RadioButton))
{
RadioButton radio = (RadioButton)r;
if (radio.Checked)
{
if (int.Parse(radio.Text) == total)
{
return true;
}
}
}
}
return false;
}
private void Form1_Load(object sender, EventArgs e)
{
PresentQuestion();
}
private void button1_Click(object sender, EventArgs e)
{
if (CheckOFResult())
{
MessageBox.Show("Correct");
}else
{
MessageBox.Show("Incorrect");
}
}
private void button2_Click(object sender, EventArgs e)
{
PresentQuestion();
}
}