删除目录返回对路径的访问被拒绝

Question

I have code that looks for empty directories that are older than 1 hour and deletes them

foreach (DirectoryInfo __dir in _directories)
{
    if (!__dir.EnumerateFiles().Any() && __dir.LastWriteTime < DateTime.Now.AddHours(-1))
    {
        Directory.Delete(__dir.FullName)
    }
}

That throws an exception saying access to the directory path is denied. However I'm able to manually delete the same directory through file explorer.
I tried what other people suggested (setting attributes to normal), but that didn't work.

I tried FileAttributes.Normal; and ~FileAttributes.ReadOnly; Neither of them work.
I also tried setting access control to full control of the directory I'm trying to delete as well as it's parent directories.

Answer 1

If program posted above cannot delete the Directory but otherwise you can manually and it's a permission issue, since manually you are logged is as admin, but application is not running under administrator permission:

• For a console / UI application, Visual studio / exe is running under lesser permission, open visual studio under admin permission or run the exe as an administrator, it shall be able to able to achieve the purpose
• For ASP.Net web application, it would be running under the context of a IIS user, check out users and groups, provide permission to that user over the directory.

Answer 2

If FileAttributes.Normal; doesn't do the trick (which it should) try setting the Attributes to ReadOnly:

foreach (DirectoryInfo __dir in _directories)
{
    if (!__dir.EnumerateFiles().Any() && __dir.LastWriteTime < DateTime.Now.AddHours(-1))
    {
       __dir.Attributes = dir.Attributes & ~FileAttributes.ReadOnly;
       __dir.Delete();
    }
}

Also note this uses __dir to delete itself instead of the Directory.Delete(__dir.FullName) , it shouldn't make a difference, just shorthand.

Answer 3

连同其他建议一起，请确保您要删除的目录（例如：读取或写入目录中的文件）中的程序均未在“做某事” ...