.NET filesystemwatcher - 它是文件还是目录？

Question

有没有办法确定FSW是否删除了文件或目录？

Answer 1

这是fletcher解决方案的简化和更正版本:

namespace Watcher
{
    class Program
    {
        private const string Directory = @"C:\Temp";
        private static FileSystemWatcher _fileWatcher;
        private static FileSystemWatcher _dirWatcher;

        static void Main(string[] args)
        {
             _fileWatcher = new FileSystemWatcher(Directory);
             _fileWatcher.IncludeSubdirectories = true;
             _fileWatcher.NotifyFilter = NotifyFilters.FileName;
             _fileWatcher.EnableRaisingEvents = true;
             _fileWatcher.Deleted += WatcherActivity;

            _dirWatcher = new FileSystemWatcher(Directory);
            _dirWatcher.IncludeSubdirectories = true;
            _dirWatcher.NotifyFilter = NotifyFilters.DirectoryName;
            _dirWatcher.EnableRaisingEvents = true;
            _dirWatcher.Deleted += WatcherActivity;

            Console.ReadLine();
        }

        static void WatcherActivity(object sender, FileSystemEventArgs e)
        {
            if(sender == _dirWatcher)
            {
                Console.WriteLine("Directory:{0}",e.FullPath);
            }
            else
            {
                Console.WriteLine("File:{0}",e.FullPath);
            }
        }
    }
}

Answer 2

您可以询问该FileSystemEventArgs.FullPath属性来判断它是目录还是文件。

if (Path.GetFileName(e.FullPath) == String.Empty) 
{
    //it's a directory.
}

检查它是文件还是目录。