如何跟蹤c上指定文件夾中的更改＃

Question

1. 我需要以下內容才能添加和刪除文件和文件夾。
2. 我需要注意文件和文件夾的更改。
3. 所有操作都必須遞歸。

如何在c＃上做到這一切？

Answer 1

使用

 FileSystemWatcher

下面是一個簡單的代碼示例留意創建的文件：

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; 
}