Question

我有一个非常简单的基本技能课程。问题在代码内。我希望从文本文件中加载问题。

我已经在文本文件中添加了一些问题。

我有一个列表索引，将从文本文件中选择一个随机问题并将其作为标签加载。

问题是当我尝试加载问题时，我得到了： System.ArgumentOutOfRangeException：“ minValue”不能大于maxValue。参数名称：minValue'错误

这是我的代码：

        private void LoadQuestions()
    {
        if(Globals.intQuestionNumber == 11)
        {
            MessageBox.Show("Quiz complete - Redirecting", "Quiz Complete");

            var fileStream = new FileStream(@"H:\(4)Programming\Assignments\EssentialSkills - Optimised\EssentialSkills\Numeracy\QuestionsLvl0.txt", FileMode.Open, FileAccess.Read);
            using (var streamReader = new StreamReader(fileStream, Encoding.UTF8))
            {
                string line;
                while ((line = streamReader.ReadLine()) != null)
                {
                    stringAllInfo.Add(line);
                    MessageBox.Show(line);

                }
            }

            char[] delimiterChars = { ',' };

            foreach (string l in stringAllInfo)
            {
                string[] words = l.Split(delimiterChars);
                strQuestion.Add(words[0]);
                strAnswer.Add(words[1]);
                Console.WriteLine(words[0]);
                Console.WriteLine(words[1]);

            }


            Menus.Summary sum = new Menus.Summary();
            sum.Show();
            this.Hide();
        }

        else 
        {
            lblCountdownval.Visible = false;
            lblCountdown.Visible = false;

            Globals.intQuestionNumber += 0;
            lblQuestionsNumber.Text = "Question Number: " + Globals.intQuestionNumber.ToString();



            Random random = new Random();
            Globals.listIndex = random.Next(0, strAnswer.Count - 1);

            lblQuestion.Text = strQuestion.ElementAt(Globals.listIndex);

            Globals.listQuestonsAsked.Add(strQuestion.ElementAt(Globals.listIndex));
            btnCorrect.Text = strAnswer.ElementAt(Globals.listIndex).ToString();
            btnAnswer1.Text = random.Next(200).ToString();
            btnAnswer3.Text = random.Next(200).ToString();

            int locationIndex = random.Next(0, 3);
            btnCorrect.Location = points.ElementAt(locationIndex);

            locationIndex = random.Next(0, 3);

            btnAnswer1.Location = points.ElementAt(locationIndex);
            while ((btnAnswer1.Location == btnCorrect.Location))
            {
                locationIndex = random.Next(0, 3);
                btnAnswer1.Location = points.ElementAt(locationIndex);

            }
            locationIndex = random.Next(0, 3);
            btnAnswer3.Location = points.ElementAt(locationIndex);

            while ((btnAnswer3.Location == btnCorrect.Location) || (btnAnswer3.Location == btnAnswer1.Location))
            {
                locationIndex = random.Next(0, 3);
                btnAnswer3.Location = points.ElementAt(locationIndex);
            }

            btnAnswer1.Show();
            btnCorrect.BackColor = Color.White;
            btnAnswer3.Show();
        }

    }

这是我的列表：

    public List<string> strQuestion = new List<string>();
    public List<string> strAnswer = new List<string>();
    public List<string> stringAllInfo = new List<string>();

我想要从文本文件到标签的问题，但出现此错误。

有什么建议吗？

谢谢。

Answer 1

我认为你在这里跌倒了

Globals.listIndex = random.Next(0, strAnswer.Count - 1);

strAnswer.Count是0吗？通过调试检查。如果不能，请确定导致异常的原因是什么？

为什么我得到System.ArgumentOutOfRangeException：“ minValue”不能大于maxValue。参数名称：minValue'错误？

1 个答案: