当应用程序强行关闭时，如何写关闭原因的日志文件。 [英] How to Write log file with closing reason, when application forcefully closed.

问题描述

大家好，



我创建了Windows应用程序。



需要更新日志文件基于应用程序结束。



我已调用日志文件功能来更新表单结束事件中的原因。


但是，它显示另一个进程使用的错误消息文件。



如果我强行关闭应用程序，日志文件不会保存。



在日志文件中：

使用（StreamWriter sw = File.AppendText（logFile））



任何帮助。



提前致谢。

解决方案

引用：

文件由另一个进程使用。

并猜测它使用该日志文件的应用程序是什么？

嗯，当然，这是你的。

使用不同的设计：必须只有一个类写入日志文件，并调用该类的公共方法，以便在日志文件中添加条目。

您需要从未崩溃的线程运行日志或捕获错误并在try中写入日志。

 尝试 
 {
  //  你的崩溃代码 
} 
  catch （例外）
 {
  //  在此处写下您的日志 
} 
 

  private   void  ClosingForm_FormClosing_1（ object  sender，FormClosingEventArgs e）
 {
 
 Thread thread1 =  new  Thread （ new  ThreadStart（log））; 
 thread1.Start（）; 
 
 
} 
 
  void  log（）
 {
  string  path = System.Reflection.Assembly.GetExecutingAssembly（）。Location; 
  string  folderpath = System.IO.Path.GetDirectoryName（path）; 
  string  logFilePath = folderpath +  @  \\ \\log.txt; 
 
  if （！System.IO.File.Exists（logFilePath））
 {
 System.IO.File .Create（LOGFILEPATH）; 
} 
 
 StreamWriter sw =  new  StreamWriter（logFilePath， true  ）;  //  位于/ bin / debug  
 sw.WriteLine（ 应用程序意外关闭： + System.DateTime.Now.ToString（））; 
 sw.Close（）; 
 
} 
 

Hi All,

I have created Windows application.

Need to update the log file based on application closing.

I have called Log file function to update the reason in Form Closing event.

But, it shows an error message file is used by another process.

If i forcefully shut down the application, log file is not saving.

In Log file:
using (StreamWriter sw = File.AppendText(logFile))

Any help on this.

Thanks in advance.

解决方案

Quote:

file is used by another process.

And guess which application it is which uses that log file?
Well, of course, it's yours.
Use adifferent design: there must be only one class which writes to the log file, and call a public method of that class for adding an entry to the log file.

You need to run the log from a thread that didn't crash or capture the error and write to the log in a try .

try
{
    //Your crashy code
}
catch (Exception)
{
    //write your log here
}

private void ClosingForm_FormClosing_1(object sender, FormClosingEventArgs e)
       {

           Thread thread1 = new Thread(new ThreadStart(log));
           thread1.Start();


       }

       void log()
       {
           string path = System.Reflection.Assembly.GetExecutingAssembly().Location;
           string folderpath = System.IO.Path.GetDirectoryName(path);
           string logFilePath = folderpath + @"\log.txt";

           if (!System.IO.File.Exists(logFilePath))
           {
               System.IO.File.Create(logFilePath);
           }

           StreamWriter sw = new StreamWriter(logFilePath,true); //located in /bin/debug
           sw.WriteLine("Application closed accidentally at : "+System.DateTime.Now.ToString());
           sw.Close();

       }

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