C# File.Delete 对路径的访问被拒绝
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File.Delete Access to the path is denied
提问by Roman Ratskey
My console application program is creating some runtime files while it is working so what I want to do is delete all of these files on the application startup. I have tried this:
我的控制台应用程序在运行时正在创建一些运行时文件，所以我想要做的是在应用程序启动时删除所有这些文件。我试过这个：
public static void Empty(string targetDir)
{
var directory = new DirectoryInfo(targetDir);
if (!directory.Exists) return;
foreach (var file in directory.GetFiles()) file.Delete();
foreach (var subDirectory in directory.GetDirectories()) subDirectory.Delete(true);
}
...just to look for all the files/folders in the given path (which is in a subdirectory in the program execution path) then delete them. However, I get the following exception:
...只是为了查找给定路径（位于程序执行路径的子目录中）中的所有文件/文件夹，然后删除它们。但是，我收到以下异常：
Access to the path 'file' is denied.
拒绝访问路径“文件”。
I tried to run the program as administrator with no luck; However, I want a solution that works without using administrator privileges.
我试图以管理员身份运行该程序，但没有运气；但是，我想要一个无需使用管理员权限即可工作的解决方案。
Notes :
注意事项：
- The file is not running in another application.
- The file is not in a protected folder.
- The file can be deleted manually with no problems and that's why i am here.
- 该文件未在其他应用程序中运行。
- 该文件不在受保护的文件夹中。
- 该文件可以毫无问题地手动删除，这就是我在这里的原因。
采纳答案by sa_ddam213
Try using the Microsoft.VisualBasic.FileIO.FileSystemmethods as it has a handy DeleteDirectorymethod, I had access troubles awhile ago and this was the fix for my problem.
尝试使用这些Microsoft.VisualBasic.FileIO.FileSystem方法，因为它有一个方便的DeleteDirectory方法，前一段时间我遇到了访问问题，这是我的问题的解决方案。
var directory = new DirectoryInfo(targetDir);
if (directory.Exists)
{
Microsoft.VisualBasic.FileIO.FileSystem.DeleteDirectory(targetDir, Microsoft.VisualBasic.FileIO.DeleteDirectoryOption.DeleteAllContents);
}
回答by Roman Ratskey
Using Windows API MoveFileEx might be a potential solution with a parameter MOVEFILE_DELAY_UNTIL_REBOOT to remove the file only after reboot.
使用 Windows API MoveFileEx 可能是一个潜在的解决方案，它带有参数 MOVEFILE_DELAY_UNTIL_REBOOT 以仅在重新启动后删除文件。
Please check http://msdn.microsoft.com/en-us/library/aa365240%28v=vs.85%29.aspx.
请检查http://msdn.microsoft.com/en-us/library/aa365240%28v=vs.85%29.aspx。
回答by EdmundYeung99
You say that the files are not open in another application, but it must be open within your application:
你说文件没有在另一个应用程序中打开，但它必须在你的应用程序中打开：
//Create some directories to delete
Directory.CreateDirectory("C:/Temp/DeleteMe");
Directory.CreateDirectory("C:/Temp/DeleteMe/DeleteMe");
File.Create("C:/Temp/DeleteMe/DeleteMeFile");//FileStream still open!!
//Delete the files
var directory = new DirectoryInfo("C:/Temp/DeleteMe");
if (!directory.Exists) return;
foreach (FileInfo file in directory.GetFiles())
{
file.Delete();
}
foreach (DirectoryInfo dir in directory.GetDirectories())
{
dir.Delete(true);
}
Make sure you dispose the file stream when you create the file
确保在创建文件时处理文件流
//Create some directories to delete
Directory.CreateDirectory("C:/Temp/DeleteMe");
Directory.CreateDirectory("C:/Temp/DeleteMe/DeleteMe");
using (File.Create("C:/Temp/DeleteMe/DeleteMeFile")) { }
//Delete the files
var directory = new DirectoryInfo("C:/Temp/DeleteMe");
if (!directory.Exists) return;
foreach (FileInfo file in directory.GetFiles())
{
file.Delete();
}
foreach (DirectoryInfo dir in directory.GetDirectories())
{
dir.Delete(true);
}
回答by majjam
I got this error and found that it was because my test files were readonly. Changed this and I can now use fileinfo to delete them no worries.
我收到这个错误，发现是因为我的测试文件是只读的。改变了这一点，我现在可以使用 fileinfo 来删除它们，不用担心。
回答by roderickprince
if (File.Exists(filePath))
{
File.SetAttributes(filePath, FileAttributes.Normal);
File.Delete(filePath);
}
