的StreamWriter / StreamReader的文件在由另一个进程使用 [英] StreamWriter/StreamReader File In Use By Another Process

问题描述

 的StreamWriter的StreamWriter =文件：
我有一个StreamWriter对象写入到一个日志文件，如下所示它被初始化。 AppendText通过（GetLogFilePath（））; 
 streamWriter.AutoFlush = TRUE; 
  

后来在我的代码，我需要关闭日志文件，然后在登录的部分内容出的内容。我有以下代码：

  streamWriter.Close（）; 
的StreamWriter = NULL; 
的StreamReader logFileStream = File.OpenText（GetLogFilePath（））; 
  

这是抛出一个异常：
的该进程无法访问，因为它的文件正在使用由另一个进程。的

据推测，问题是，日志文件没有正确关闭时我关闭的StreamWriter。

有没有更好的方式来关闭的StreamWriter，以确保文件已打开，正确关闭？

更新：我已经解决了我的问题。它是由一个不相关的问题（其中一个单独的应用程序访问，我试图访问该文件）引起的。
我接受梅德Martovoi的回答，因为我认为这是谁在未来类似问题的其他人的最有用的;但一个重要的注意事项是确实需要的日志文件中的解决方案，以每次日志写入时间，这可能会导致不必要的开销被打开。

解决方案

我总是在使用语句包装这样的代码

 使用（StreamWriter的作家= File.AppendText（路径））
 {
 writer.WriteLine（这）; 
 writer.WriteLine（就是额外）; 
 writer.WriteLine（文字）; 
} 
  

但的StreamWriter 关闭方法一模一样的如的Dispose 。

I have a StreamWriter object to write to a log file, it is initialised as follows:

StreamWriter streamWriter = File.AppendText(GetLogFilePath());
streamWriter.AutoFlush = true;

Later in my code, I need to close the log file, and then read in part of the logged out contents. I have the following code:

streamWriter.Close();
streamWriter = null;
StreamReader logFileStream = File.OpenText(GetLogFilePath());

This is throwing an exception: The process cannot access the file because it is being used by another process.

Presumably, the problem is that the log file is not correctly closed when I close the StreamWriter.

Is there a better way to close a StreamWriter to ensure that the file it has open, is correctly closed?

UPDATE: I have resolved my issue. It was caused by an unrelated problem (where a separate application was accessing the file that I was trying to access). I am accepting Dmitry Martovoi's answer, as I think it is the most useful for other people who have a similar issue in the future; but an important note is that the solution does require the log file to be opened every time the log is written to, which can cause unnecessary overhead.

解决方案

I always wrap such code in a using statement

using (StreamWriter writer = File.AppendText(path)) 
{
   writer.WriteLine("This");
   writer.WriteLine("is Extra");
   writer.WriteLine("Text");
}

but for StreamWriter Close method doing exactly the same as Dispose.

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