GUI程序在尝试从文本文件中调用时崩溃

本文关键字：文件 调用 崩溃 文本 程序 GUI | 更新日期: 2023-09-27 18:25:22

我不确定这里有什么问题。我的程序可以毫无问题地读取"文本"并将其放入标题中，但它会崩溃，并且在此之前不会更改大小或颜色。我试着向同学们寻求帮助，但他们说我所有的代码看起来都是正确的。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace RetrieveCustomizedForm
{
public partial class Form1 : Form
{
    const char DELIM = ',';
    string recordIn;
    string[] fields;

    public Form1()
    {
        InitializeComponent();
    }
    private void button1_Click(object sender, EventArgs e)
    {
        const string FILENAME = "C:''Exercise5''Data.txt";
        stuff stuff1 = new stuff();
        FileStream inFile = new FileStream(FILENAME, FileMode.Open, FileAccess.Read);
        StreamReader reader = new StreamReader(inFile);
        recordIn = reader.ReadLine();
        reader.Close();
        inFile.Close();

        while (recordIn != null)
        {
            fields = recordIn.Split(DELIM);
            stuff1.color = fields[0];
            stuff1.size = fields[1];
            stuff1.text = fields[2];
            if (fields[0] == "red")
            {
                this.BackColor = System.Drawing.Color.Red;
            }
            if (fields[0] == "blue")
            {
                this.BackColor = System.Drawing.Color.Blue;
            }
            if (fields[0] == "yellow")
            {
                this.BackColor = System.Drawing.Color.Yellow;
            }
            if (fields[1] == "large")
            {
                this.Size = new System.Drawing.Size(500, 500);
            }
            if (fields[1] == "small")
            {
                this.Size = new System.Drawing.Size(300, 300);
            }
            this.Text = fields[2];
        }

    }
    class stuff
    {
        public string color { get; set; }
        public string size { get; set; }
        public string text { get; set; }
    }
}
}

GUI程序在尝试从文本文件中调用时崩溃

字段：可能为空，文件末尾？有文件打开错误吗？当它已经在后台打开时，试图再次打开它？

更多信息可能会有所帮助。正如其他人所说，字段[0]-[2]的值是多少？您收到了哪些错误？在我看来，您将收到的一个错误是，您的索引超出了字段数组的界限。。。给我们一些更多的信息，我们可以更好地帮助你。

这样试试

using (FileStream infile = new FileStream(FILENAME, FileMode.Open, FileAccess.Read))
{
    using (StreamReader reader = new StreamReader(infile))
    {
        string recordIn = reader.ReadLine();
        while (recordIn != null)
        {
            fields = recordIn.Split(DELIM);
            stuff1.color = fields[0];
            stuff1.size = fields[1];
            stuff1.text = fields[2];
            if (fields[0] == "red")
            {
                this.BackColor = System.Drawing.Color.Red;
            }
            if (fields[0] == "blue")
            {
                this.BackColor = System.Drawing.Color.Blue;
            }
            if (fields[0] == "yellow")
            {
                this.BackColor = System.Drawing.Color.Yellow;
            }
            if (fields[1] == "large")
            {
                this.Size = new System.Drawing.Size(500, 500);
            }
            if (fields[1] == "small")
            {
                this.Size = new System.Drawing.Size(300, 300);
            }
            this.Text = fields[2];
        }
    }
}
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