C＃：FileSystemWatcher僅派發ChangedEvent

我正在使用C＃中的FileSystemWatcher構造。作爲課程的標準，我讓我的觀察者僅僅關注感興趣的目錄。我遇到的問題是，無論用戶事件（複製，創建，重命名），我正在拾取的唯一事件是Changed事件。C＃：FileSystemWatcher僅派發ChangedEvent

例如。

觀看文件「C：\桌面\ MattsRequest」
創建文件「C：\桌面\ MattsRequest \ Dummy.txt」
觀察，只有給onChanged處理與「改變」一個FileSystemEventArg和路徑ARG引發的是「C：\桌面\ MattsRequest」 並沒有提到什麼文件被創建

我的監視器代碼看起來像這樣。

  watcher = new FileSystemWatcher(); 
      //watcher.IncludeSubdirectories = true; 
      watcher.InternalBufferSize = 32768 * 2; 
      //Can't use a synchro because I can't find an example of something that 
      //implements ISynchroniz-whatever 
      //watcher.SynchronizingObject = 

      watcher.Path = filePath; 

      watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite 
            | NotifyFilters.FileName | NotifyFilters.DirectoryName 
            | NotifyFilters.CreationTime; 

      watcher.Changed += OnChanged; //Gets triggered 
      watcher.Created += OnCreated; //Never triggered 
      watcher.Deleted += OnDeleted; 
      watcher.Renamed += OnRenamed; //Never triggered 
      watcher.Error += WatcherOnError; //Never triggered 

      // Begin watching. 
      watcher.EnableRaisingEvents = true;

下面是當我創建的監控目錄的新文件的圖像，並且它觸發關閉事件。它的類型當然是Changed，但它並不告訴我創建了哪個文件。