class Handler:Component
    {
        private static readonly object startEvent = new object();
        private static readonly object stopEvent = new object();


        public event EventHandler StartProcess
        {
            add { this.Events.AddHandler(startEvent, value); }
            remove { this.Events.RemoveHandler(startEvent, value); }
        }
        public event EventHandler StopProcess
        {
            add { this.Events.AddHandler(stopEvent, value); }
            remove { this.Events.RemoveHandler(stopEvent, value); }
        }
        protected void OnStartProcess(EventArgs e)
        {
            if (this.Events[startEvent]!=null)
            {
                ((EventHandler)this.Events[startEvent])(this, e);
            }
        }
        protected void OnStopProcess(EventArgs e)
        {
            if (this.Events[stopEvent] != null)
            {
                ((EventHandler)this.Events[stopEvent])(this, e);
            }
        }
         public void Process()
        {
            OnStartProcess(EventArgs.Empty);
            OnStopProcess(EventArgs.Empty);
        }
    }

        static void Main(string[] args)
        {
            Handler h = new Handler();
            h.StartProcess += h_StartProcess;
            h.StopProcess += h_StopProcess;
            h.Process();
            Console.Read();
        }

        static void h_StopProcess(object sender, EventArgs e)
        {
            Console.WriteLine("停止处理......");
        }
        static void h_StartProcess(object sender, EventArgs e)
        {
            Console.WriteLine("开始处理.....");
        }
    }