.NET File.GetLastAccessTime更新文件的上次访问时间 [英] .Net File.GetLastAccessTime updates Last Access Time of file

问题描述

我们使用以下行来获得最后访问日期和文件的时间。

We are using below line to get Last access date and time of the file.

DateTime dtLastAccesstime = File.GetLastAccessTime(sFilePath);

但是，我们正面临着奇怪的问题，上述自称修改上次访问时间。所以有效的，我们正在当前的时间，最后访问时间

But we are facing strange problem, the above call itself modifies the Last access time. So effectively we are getting current time as last access time.

推荐答案

您可能会发现的这个帖子有用的，特别是：

You may find this post useful, in particular:

在Windows Vista中，的维持上次访问时间默认情况下禁用

Starting in Windows Vista, maintaining the last-access time is disabled by default.

这意味着，现在大多数操作系统都将无法维持上次访问时间（我想可能占你所看到的奇怪行为）。

Which means that nowadays most operating systems won't maintain the last access time (which I suppose could account for the odd behaviour you are seeing).

即使这不是的情况下这篇文章重点介绍了一些在许多情况下，由此上次访问时间可能已更新，当你不是故意的 - 你可以确保你的应用程序不执行任何其他文件的访问

Even if this is not the case this post highlights some of the many scenarios whereby the last access time could have been updated when you didn't mean to - can you be sure that your application doesn't perform any other file access?

这篇关于.NET File.GetLastAccessTime更新文件的上次访问时间的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！