使用FileSystemWatcher监视文件系统

Question

我使用FileSystemWatcher来监视文件系统。它可以观看特定的文件夹或驱动器。

但我希望它在整个文件系统上意味着它应该在所有驱动器上观看。

对此有何想法？

我这么做。

public static void Run() 
{ 
    string[] args = System.Environment.GetCommandLineArgs(); 

    if (args.Length < 2) 
    { 
      Console.WriteLine("Usage: Watcher.exe PATH [...] [PATH]"); 
      return; 
    } 
    List<string> list = new List<string>(); 
    for (int i = 1; i < args.Length; i++) 
    { 
      list.Add(args[i]); 
    } 

    foreach (string my_path in list) 
    { 
      WatchFile(my_path); 
    } 

    Console.WriteLine("Press \'q\' to quit the sample."); 
    while (Console.Read() != 'q') ; 
} 
private static void WatchFile(string watch_folder) 
{ 
    watcher.Path = watch_folder; 

    watcher.NotifyFilter = NotifyFilters.LastWrite; 
    watcher.Filter = "*.xml"; 
    watcher.Changed += new FileSystemEventHandler(convert); 
    watcher.EnableRaisingEvents = true; 
} 

使用Filesystem Watcher - Multiple folders

Answer 1

的一种方法是，以枚举所有的目录，并通过对他们每个人的使用FileSystemWatcher看着他们。

但它会消耗大量的资源。因此，您可以对此链接进行替代查看：Filewatcher for the whole computer (alternative?)

Answer 2

您可以使用IncludeSubdirectories查看整个系统到逻辑驱动器。 试试这个代码，

string[] drives = Environment.GetLogicalDrives(); 

foreach(string drive in drives) 
{ 
    FileSystemWatcher watcher = new FileSystemWatcher(); 
    watcher.Path = drive; 
    watcher.IncludeSubdirectories = true; 
    watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite 
        | NotifyFilters.FileName | NotifyFilters.DirectoryName; 

    watcher.Filter = "*.txt"; 

    watcher.Changed += new FileSystemEventHandler(OnChanged); 
    watcher.Created += new FileSystemEventHandler(OnChanged); 
    watcher.Deleted += new FileSystemEventHandler(OnChanged); 
    watcher.Renamed += new RenamedEventHandler(OnRenamed); 

    watcher.EnableRaisingEvents = true; 
}