System.Timers.Timer.Close C# (CSharp) Méthode

        public void Close()
        {
            _initializing = false;
            _delayedEnable = false;
            _enabled = false;

            if (_timer != null)
            {
                _timer.Dispose();
                _timer = null;
            }
        }

 /// <summary>
 /// 清除定时器
 /// </summary>
 public void ClearTimer()
 {
     try
     {
         _timer.Elapsed -= Checklive;
         _timer.Stop();
         _timer.Close();
         _timer.Dispose();
     }
     catch
     {
         Thread.Sleep(1000 * 3);//休息3秒再清除定时器
         try
         {
             _timer.Elapsed -= Checklive;
             _timer.Stop();
             _timer.Close();
             _timer.Dispose();
         }
         catch (Exception ex)
         {
             LogManager.DefaultLogger.DebugFormat("ClearTimer Error:{0}", new { _imuserid, _channelid, _sourcetype, err = ex.ToString() }.ToJson());
         }
     }
 }