public void AddDeleteList(IAsyncOperationItem item)
        {
            if (item == null)
            {
                return;
            }

            item.SetDelete(true);
        }
        public void AddDeleteList(AsyncOperation opt)
        {
            TimerInfo time;

            if (mDic.TryGetValue(opt, out time) && (time != null))
            {
                IAsyncOperationItem item = (IAsyncOperationItem)time.target;

                if (item == null)
                {
                    return;
                }

                item.SetDelete(true);
            }
        }