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FileSystemWatcher更改了最近打开的文件未触发的事件

[英]FileSystemWatcher changed event not firing for recently opened file

原文 2014-06-27 12:38:44 4 1 c#/ filesystemwatcher

I implemented FileSystemWatcher in a windows forms application. 我在Windows窗体应用程序中实现了FileSystemWatcher 。 Changed event is working when I open a file (say pdf-1) for the first time. 当我第一次打开文件（比如pdf-1）时，更改的事件正在运行。 But when I open the same file for the second time within short span of time, changed event is not firing. 但是当我在短时间内第二次打开同一个文件时，更改的事件不会触发。 But it is firing when I open another file (say pdf-2). 但是当我打开另一个文件（比如pdf-2）时它会被触发。 Again the changed event is firing for the first file (pdf-1) only if I open it after some time (say 1 or 2 hours). 只有当我在一段时间后打开它（比如1或2小时）时，更改的事件再次触发第一个文件（pdf-1）。

I set the InternalBufferSize to 16KB and the NotifyFilters used are LastAccess , LastWrite , FileName and DirectoryName . 我将InternalBufferSize设置为16KB，使用的NotifyFilters是LastAccess ， LastWrite ， FileName和DirectoryName 。

I am unable to find out the issue. 我无法找出问题所在。 Can anyone help me out? 谁能帮我吗？

1 个解决方案

I have seen similar results with FileSystemWatcher for RAID controller disks, SCSI disks and regular IDE disks with write cache enabled . 我已经看到FileSystemWatcher对于RAID控制器磁盘，SCSI磁盘和启用了写入缓存的常规IDE磁盘的类似结果 。

I also experienced a lot of other errors that may have been caused by thread synchronization problems . 我还遇到了许多可能由线程同步问题引起的其他错误。 Here is another description of this problem . 这是对这个问题的另一种描述。