如何在c＃上跟踪指定文件夹中的更改

Question

1. 我需要以下内容来添加和删除文件和文件夹。
2. 我需要关注文件和文件夹的更改。
3. 所有操作都必须递归。

如何在c＃上完成所有操作？

Answer 1

使用

 FileSystemWatcher 

这是一个简单的代码示例，用于查看已创建的文件：

public void Watcher()
{
    //Create a new FileSystemWatcher.
    FileSystemWatcher watcher = new FileSystemWatcher();

    //Set the filter to only catch TXT files.
    watcher.Filter = "*.txt";

    //Subscribe to the Created event.
    //Created Occurs when a file or directory in the specified Path is created.
    //You can change this based on what you are trying to do.
    watcher.Created += new FileSystemEventHandler(YOUR_EVENT_HANDLER);

    //Set the path to you want to monitor
    watcher.Path = @"C:\PATH\";

    //Enable the FileSystemWatcher events.
    watcher.EnableRaisingEvents = true;
}