如何使用C＃修复从文件中读取的显示文本 [英] How can I fix the display text which is read from a file using C#

问题描述

我正在使用带有C＃的WindowForm我想读取文件并显示到标签。但结果不是我的期望。它显示为LP＃@ $，因为我的数据是Nghia Nam Honag。 我该如何解决？ 这是我的代码：

  private   void  btnFile1_Click（ object  sender，EventArgs e）
 {
 OpenFileDialog openFile =  new  OpenFileDialog（）; 
  string  str =  string  .Empty; 
  string  chuoiNoi =  string  .Empty; 
  string  line =  string  .Empty; 
  if （openFile.ShowDialog（）== DialogResult.OK）{
 str = openFile.FileName; 
 尝试 
 {
 使用（StreamReader sr =  new  StreamReader（str））
 {
  while （（line = sr.ReadLine（） ）！=  null ）{
 chuoiNoi = chuoiNoi +   + line; 
} 
 lbFileA.Text = chuoiNoi; 
} 
}  catch （Exception ex）{
 Console.Write（ 您有错误：）; 
 Console.Write（ex.Message）; 
} 
 
} 
} 

我尝试过：



我试图添加encoding.UTF-8但不成功

解决方案

incase我的数据是Nghia Nam Honag。我该如何解决？ 这是我的代码：

 私有  void  btnFile1_Click（ object  sender，EventArgs e）
 {
 OpenFileDialog openFile =  new  OpenFileDialog（）; 
  string  str =  string  .Empty; 
  string  chuoiNoi =  string  .Empty; 
  string  line =  string  .Empty; 
  if （openFile.ShowDialog（）== DialogResult.OK）{
 str = openFile.FileName; 
 尝试 
 {
 使用（StreamReader sr =  new  StreamReader（str））
 {
  while （（line = sr.ReadLine（） ）！=  null ）{
 chuoiNoi = chuoiNoi +   + line; 
} 
 lbFileA.Text = chuoiNoi; 
} 
}  catch （Exception ex）{
 Console.Write（ 您有错误：）; 
 Console.Write（ex.Message）; 
} 
 
} 
} 

我尝试过：



我试图添加encoding.UTF-8但不成功

很可能是不匹配这是因为您的源是Unicode：尝试使用Encoding.Unicode选项阅读：[ ^ ]。



另外，请确保使用标签字体支持Unicode，比如'Consolas。



在这里显示的代码中，没有真正的有机原因我可以看到逐行阅读文件行，并使用添加的字符串将运行内存使用方式。



考虑一次读取整个文件。



fyi：标签是控件显示文件整个内容的奇怪选择。

您好，

来自msdn：

File.ReadAllText方法（字符串）打开文本文件，读取文件的所有行，以及然后关闭文件。 链接到这里

 string filecontent = File.ReadAllText（filepath）; 
 

谢谢

I am using WindowForm with C# I want to read a file and display to a label. But the result is not my expectation. It displays like "LP#@$" incase my data is "Nghia Nam Honag". How can I fix it? Here is my code:

private void btnFile1_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFile = new OpenFileDialog();
            string str = string.Empty;
            string chuoiNoi = string.Empty;
            string line = string.Empty;
            if(openFile.ShowDialog() == DialogResult.OK){
                str = openFile.FileName;
                try
                {
                    using (StreamReader sr = new StreamReader(str))
                    {
                        while((line = sr.ReadLine()) != null){
                            chuoiNoi = chuoiNoi + " " + line;
                        }
                        lbFileA.Text = chuoiNoi;
                    }
                }catch(Exception ex){
                    Console.Write("You have an error: ");
                    Console.Write(ex.Message);
                }
                
            }
        }

What I have tried:

I tried to add encoding.UTF-8 but unsuccess

解决方案

" incase my data is "Nghia Nam Honag". How can I fix it? Here is my code:

private void btnFile1_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFile = new OpenFileDialog();
            string str = string.Empty;
            string chuoiNoi = string.Empty;
            string line = string.Empty;
            if(openFile.ShowDialog() == DialogResult.OK){
                str = openFile.FileName;
                try
                {
                    using (StreamReader sr = new StreamReader(str))
                    {
                        while((line = sr.ReadLine()) != null){
                            chuoiNoi = chuoiNoi + " " + line;
                        }
                        lbFileA.Text = chuoiNoi;
                    }
                }catch(Exception ex){
                    Console.Write("You have an error: ");
                    Console.Write(ex.Message);
                }
                
            }
        }

What I have tried:

I tried to add encoding.UTF-8 but unsuccess

Most likely the "mis-match" here is because your source is Unicode: try reading with Encoding.Unicode option: [^].

Also, make sure you are using a Font for the Label that supports Unicode, like 'Consolas.

In the code you show here, there is no real "organic" reason I can see to read the file line-by-line, and use of addition of Strings is going to run the use of memory way up.

Consider reading the whole file at one time.

fyi: a Label is a "strange" choice for a Control to display the entire contents of a file.

Hello ,
From msdn :
File.ReadAllText Method (String)Opens a text file, reads all lines of the file, and then closes the file. Link Here

string filecontent= File.ReadAllText(filepath);

Thanks

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