错误的验证按钮
本文关键字:按钮 验证 错误 | 更新日期: 2023-09-27 18:07:15
所以,我需要制作一个应用程序,在2个标签中生成2个数字,然后用户必须输入这2个数字的附加值作为答案。然后我需要做一个按钮,检查用户是否在文本框中输入了正确的解决方案…
然而,我做的检查按钮,每次都显示答案为"不正确"…我做错了什么?
private void generatebutton_Click(object sender, EventArgs e
{
//Declaring Variables for Generate button
int answer = 0;
Random rand = new Random();
var intNum1 = rand.Next(100, 500);
var intNum2 = rand.Next(100, 500);
answer = intNum1 + intNum2;
//Generate integer number 1 in first label
firstnumberlabel.Text = intNum1.ToString();
//Generate integer number 2 in second label
secondNumberlabel.Text = intNum2.ToString();
}
private void checkButton_Click(object sender, EventArgs e)
{
//Declaring variables for answer label
int userInput = 0;
int answer = 0;
Random rand = new Random();
var intNum1 = rand.Next(100, 500);
var intNum2 = rand.Next(100, 500);
answer = intNum1 + intNum2;
if (int.TryParse(txtanswer.Text, out userInput))
{
if (userInput == answer)
{
// Display success message
MessageBox.Show("Correct!");
}
else
{
// Display wrong answer message
MessageBox.Show("Incorrect!");
}
}
else
{
// show message that invalid input
}
}
private void exitButton_Click(object sender, EventArgs e)
{
//Closes Application
this.Close();
}
private void button4_Click(object sender, EventArgs e)
{
//Clears text box
txtanswer.Text = "";
}
}
}
您正在将用户的答案与新的随机数集进行比较,而不是原始的两个随机数。
在你的checkButton_Click事件中,替换int answer = 0之后的4行;比如answer = int.Parse(firstnumberlabel.Text) + int.Parse(secondnumberlabel.Text);
仍然需要添加一些输入完整性检查,以避免用户在不提供数字的情况下尝试检查答案时出现异常。
按如下修改即可。你正在创建新的随机数来找到错误的答案
private void generatebutton_Click(object sender, EventArgs e
{
//Declaring Variables for Generate button
Random rand = new Random();
var intNum1 = rand.Next(100, 500);
var intNum2 = rand.Next(100, 500);
//Generate integer number 1 in first label
firstnumberlabel.Text = intNum1.ToString();
//Generate integer number 2 in second label
secondNumberlabel.Text = intNum2.ToString();
}
private void checkButton_Click(object sender, EventArgs e)
{
int userInput = 0;
int answer = int.Parse(firstnumberlabel.Text) + int.Parse(secondnumberlabel.Text);
if (int.TryParse(txtanswer.Text, out userInput))
{
if (userInput == answer)
{
// Display success message
MessageBox.Show("Correct!");
}
else
{
// Display wrong answer message
MessageBox.Show("Incorrect!");
}
}
else
{
MessageBox.Show("Please enter a valid answer!");
}
}
private void exitButton_Click(object sender, EventArgs e)
{
//Closes Application
this.Close();
}
private void button4_Click(object sender, EventArgs e)
{
//Clears text box
txtanswer.Text = "";
}