FileSystemWatcher收到太多事件 [英] FileSystemWatcher getting too many event

问题描述

我正在尝试实现一个文件监视程序，如果文件内容被更改，它将引发一个事件. 一旦我正在观看的文件被修改，我将收到2个事件的问题. (我只想得到一次)

I'm trying to implement a file watcher that will raise an event if the file content was changed. The problem that once the file I am watching was modified, I am getting 2 events. (I want to get it only once)

_automationStatusWatcher = new FileSystemWatcher(fileInfo.Directory.FullName,
                                                 fileInfo.Name);
_automationStatusWatcher.NotifyFilter = NotifyFilters.LastWrite;
_automationStatusWatcher.Changed += OnAutomationStatusChanged;
_automationStatusWatcher.EnableRaisingEvents = true;

我正在观看的文件无意于重新创建/移动/删除/执行任何操作.它的目的是成为一个xml数据库文件，一旦它发生更改，我就需要对其进行监视.修改文件后，我只希望获得1个事件，而忽略其他事件.

The file that i'm watching is not intended to be recreated/moved/deleted/whatever. its purpose is to be an xml database file that i need to monitor it once it changes. i want to get only 1 event when the file is modified and to ignore the other events.

我该怎么做?

推荐答案

手册:

注意

常见文件系统操作可能引发多个事件.例如，当文件从一个目录移动到另一个目录时，可能会引发几个OnChanged以及一些OnCreated和OnDeleted事件.移动文件是一个复杂的操作，由多个简单的操作组成，因此会引发多个事件.同样，某些应用程序(例如，防病毒软件)可能会导致FileSystemWatcher检测到其他文件系统事件.

Common file system operations might raise more than one event. For example, when a file is moved from one directory to another, several OnChanged and some OnCreated and OnDeleted events might be raised. Moving a file is a complex operation that consists of multiple simple operations, therefore raising multiple events. Likewise, some applications (for example, antivirus software) might cause additional file system events that are detected by FileSystemWatcher.

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