c# - 配置 filesystemwatcher 使其仅在文件被完全复制时引发创建的事件

Question

当有一个大文件移动到监视文件夹中时，即使在文件被完全复制之前它也会引发 created 事件。

在创建的事件中复制此类文件会导致“文件正在被另一个进程使用”错误。

我使用了一个尝试复制文件的线程，直到它被允许这样做。但我仍然不满意。

我们能否配置 FileSystemWatcher，以便仅在文件完全复制后才引发 created 事件？谢谢。

Answer 1

documentation for the FileSystemWatcher class具体说明您观察到的行为

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.

您可以检查文件的锁是否已释放，然后知道复制已完成？