C#-RichTextBox-无法正常工作 [英] C# - RichTextBox - Won't Work

问题描述

好，所以这是我必须打开rules.txt文件的代码....每当我尝试编辑richtextbox时，它总是会使程序崩溃...任何想法....错误列表..

Ok, so here is the code I have to open my rules.txt file.... Whenever I try and edit the richtextbox it always crashes the program... Any ideas why.... Nothing showed up in the error list..

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 McMayhem.GUI
{
    public partial class TextFiles : Form
    {
        public TextFiles()
        {
            InitializeComponent();
        }


        private void txtRules_TextChanged(object sender, EventArgs e)
        {
        if (File.Exists("Rules.txt"))
            {
                txtRules.Text = "Rules for " + Server.Version + ":";
                foreach (string line in File.ReadAllLines(("Rules.txt")))
                {
                    txtRules.AppendText("\r\n           " + line);
                }
            }
        }
        }
        }

推荐答案

对于软件开发人员来说，没有崩溃"之类的东西.软件开发人员使用Debugger和总是可以看到发生了什么.您需要做的第一件事是停止做您正在做的事情，成为一名软件开发人员.今天，不是明天！

现在，只需考虑您的工作！您没有显示如何设置事件处理程序(谁知道txtRules_TextChanged的含义；没有此类事件)，但是通过此方法的名称，您可能会猜测它用作TextChanged事件的处理程序.您的控件textRules.为什么选择RichTextBox?它应该只是TextBox.没关系，让我们看看.每次更改时，您都会阅读一些文本并将其附加到相同文本框中！它再次触发同一文本框的TexChanged，然后…正确无限递归 .

我不知道为什么要这么做，但这就是你搞砸的方式.整个事情都没有道理.您的最终目标是什么? (如果您不想要，请不要回答:-).)

—SA

For a software developer, there is not such thing as "crash". A software developer uses Debugger and always can see what''s going on. First thing you need to do is to stop doing what you''re doing and become a software developer. Today, not tomorrow!

Now, just think what you do! You do not show how your event handler is set up (who knows what txtRules_TextChanged means; there is no such event), but by the name of this method one could guess that this is used as a handler of the TextChanged event of your control textRules. Why RichTextBox? It should be just TextBox. No matter, let''s see. On every change, you read and append some text to the same text box! It triggers TexChanged of the same text box again and… right, infinite recursion.

I have no idea why doing this, but this is how you screw up. Whole thing makes no sense. What was your ultimate goal? (Don''t answer if you don''t want :-).)

—SA

这篇关于C#-RichTextBox-无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！