WPF DispatcherTimer GC回收

        static DispatcherTimer GCTimer = new DispatcherTimer();
        public static void BeginGC()
        {
            GCTimer.Interval = TimeSpan.FromMinutes(0.5); //垃圾释放定时器 我定为每十分钟释放一次，大家可根据需要修改
            GCTimer.Start();

            EventsRegistion();    // 注册事件
        }

        public static void EventsRegistion()
        {
            GCTimer.Tick += new EventHandler(OnGarbageCollection);
        }

        public static void EventDeregistration()
        {
            GCTimer.Tick -= new EventHandler(OnGarbageCollection);
        }

        static void OnGarbageCollection(object sender, EventArgs e)
        {
            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();
        }