C#异常:进程无法访问文件 [英] C# Exception: The process cannot access the file

问题描述

我遇到一个例外:该进程无法访问该文件.

I'm getting an exception: The process cannot access the file.

这是我的代码中的一个片段:

Here's a snippet from my code:

在添加这些行之前，代码运行良好.这些主要用于测试xml文件是否没有结束标记(通常我会得到这些标记)，然后添加标记.添加以下代码后，它开始为我提供此异常.

The code was working perfectly before I added these lines. These are mainly for testing if the xml file is without the closing tags (which) I normally get then add the tags. After I added the following code it started giving me this exception.

尝试
{
    XmlDocument xdoc = 新 XmlDocument ();
    xdoc . 加载 ( FileName );
    xdoc = 空 ;

}
catch ( XmlException xe )
{
   使用 ( StreamWriter w = 文件 . AppendText ( FileName ))
    {
       控制台 . WriteLine ( xe );
       w . WriteLine ( </test>" );
       w . WriteLine ( </testwrapper>" );
    }
}   

try
{
    XmlDocument xdoc = new XmlDocument();
    xdoc.Load(FileName);
    xdoc = null;

}
catch (XmlException xe)
{
    using (StreamWriter w = File.AppendText(FileName))
    {
        Console.WriteLine(xe);
        w.WriteLine("</test>");
        w.WriteLine("</testwrapper>");
    }
}  

这可能是什么问题?

这是我遇到的错误:

该进程失败:System.IO.IOException:该进程无法访问文件'z:\ TF_B1BBA.xml'，因为该文件正在被另一个进程使用.在System.IO.FileStream.Init(字符串路径， FileMode模式，FileAccess访问权限，I nt32权限，布尔useRights，FileShare共享，Int32 bufferSize，FileOptions选项，SECURITY_ATTRIBUTES secAttrs，String msgPath，Boolean bFromProxy，Boolea和useLongPath)位于System.IO.FileStream..ctor(字符串路径， System.Xml.XmlDownloadManager.GetStream(Uri uri，ICredentials凭据，IWebProxy代理，RequestCachePolicy cachePolicy)位于System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri，字符串)的FileMode模式，FileAccess访问，FileShare共享，Int32 bufferSize) 角色，System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver)的System.Threading.CompressedStack.runTryCode(Object userData)的类型，System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCl eanup(TryCode， System.Xml.XmlTextReaderImpl.OpenUrl()处System.Xml.XmlTextReaderImpl.Read()处的CleanupCode backoutCode，对象userData)在System.Xml.XmlTextReaderImpl.OpenUrl()处.在System.Xml.XmlLoader.Load(XmlDocument doc，XmlReader阅读器，System.Xml.XmlDocument.Load(XmlReader阅读器)，System.Xml.XmlDocument.Load(String文件名)，GSelInterface.Program.convert(Object source，FileSystemEventArgs f)在C:\文件和设定\ Administrator \ Desktop \ ConsoleApplication1 \ ConsoleApplicat ion1 \ Program.cs:line 178

The process failed: System.IO.IOException: The process cannot access the file 'z :\TF_B1BBA.xml' because it is being used by another process. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, I nt32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions o ptions, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolea n useLongPath) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials, IWebProxy proxy, RequestCachePolicy cachePolicy) at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofO bjectToReturn) at System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver) at System.Threading.CompressedStack.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCl eanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.CompressedStack.Run(CompressedStack compressedStack, Cont extCallback callback, Object state) at System.Xml.XmlTextReaderImpl.OpenUrl() at System.Xml.XmlTextReaderImpl.Read() . at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean prese veWhitespace) at System.Xml.XmlDocument.Load(XmlReader reader) at System.Xml.XmlDocument.Load(String filename) at GSelInterface.Program.convert(Object source, FileSystemEventArgs f) in C:\ Documents and Settings\Administrator\Desktop\ConsoleApplication1\ConsoleApplicat ion1\Program.cs:line 178

推荐答案

可能是在另一个线程中打开了该文件吗?甚至是另一个程序?

May be this file was opened in the other thread? Or even by another program?

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