private void CallbackFunc(IAsyncResult result)
        {
            bool           VerifyResult;
            VerifyTileDelg Delg;
            AsyncResult    asyncobject = (AsyncResult)result;

            if (asyncobject.EndInvokeCalled == false)
            {
                Delg         = (VerifyTileDelg)asyncobject.AsyncDelegate;
                VerifyResult = Delg.EndInvoke(asyncobject);
                if (VerifyResult)
                {
                    Console.WriteLine("Sucess");
                }
                else
                {
                    Console.WriteLine("fail");
                }
                ITMBizControllerCallback cb = (ITMBizControllerCallback)asyncobject.AsyncState;
                cb.OnVerificationComplete(VerifyResult);
            }
            asyncobject.AsyncWaitHandle.Close();
        }