gistfile1.txt

using System;
using System.IO;
using System.Threading;

namespace FileWatcherSample
{
	class MainClass
	{
		public static void Main (string[] args)
		{						
			string directory = Path.Combine (Path.GetTempPath (), "file-watcher-sample");
			
			try {
			
				Directory.CreateDirectory (directory);
			
				FileSystemWatcher watcher = new FileSystemWatcher ();
				watcher.Path = directory;
				watcher.Filter = "*.*";
				watcher.NotifyFilter = NotifyFilters.DirectoryName | NotifyFilters.FileName | NotifyFilters.LastWrite | NotifyFilters.Size ;
				watcher.Changed += OnFileEvent;
				watcher.Renamed += OnFileEvent;
				watcher.Created += OnFileEvent;
				watcher.Deleted += OnFileEvent;
			
				watcher.IncludeSubdirectories = true;			
				watcher.InternalBufferSize = 10;
			
				watcher.EnableRaisingEvents = true;
				
				Directory.CreateDirectory (Path.Combine (directory, "Inbox"));	
				Directory.CreateDirectory (Path.Combine (directory, "Inbox", "something"));
			
				CreateFile (directory, "my-file.txt");
				CreateFile (directory, "my-file.txt");
				CreateFile (directory, "Inbox", "my-file.txt");
				
				Thread.Sleep (TimeSpan.FromSeconds (5));
				
			} finally {
				Directory.Delete (directory, true);
			}
			
		}
		
		public static void OnFileEvent (object sender, FileSystemEventArgs args)
		{
			Console.WriteLine ("{0} - {1} - {2}", args.ChangeType, args.FullPath, args.Name);
		}
		
		public static void CreateFile (params string[] elements)
		{
			using (FileStream stream = new FileStream( Path.Combine( elements ), FileMode.OpenOrCreate )) {
				using (StreamWriter writer = new StreamWriter(stream)) {
					writer.WriteLine( "this is my piece - " + new Random().NextDouble() );
				}
			}
		}
		
	}
}