public OnRspErrorArgs(IntPtr pApi, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pApi = pApi;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 public OnRspQryDepthMarketDataArgs(IntPtr pTraderApi, ref CThostFtdcDepthMarketDataField pDepthMarketData, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pTraderApi = pTraderApi;
     this.pDepthMarketData = pDepthMarketData;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 private void OnDisconnect_callback(IntPtr pApi, ref CThostFtdcRspInfoField pRspInfo, ConnectionStatus step)
 {
     if (null != OnDisconnect)
     {
         OnDisconnect(this, new OnDisconnectArgs(pApi, ref pRspInfo, step));
     }
 }

 private void OnRspQryTradingAccount_3(IntPtr pTraderApi, ref CThostFtdcTradingAccountField pTradingAccount, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     OnRspQryTradingAccount_1(this, pTraderApi, ref pTradingAccount, ref pRspInfo, nRequestID, bIsLast);
 }

 private void OnRspQryOrder_3(IntPtr pTraderApi, ref CThostFtdcOrderField pOrder, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     OnRspQryOrder_1(this, pTraderApi, ref pOrder, ref pRspInfo, nRequestID, bIsLast);
 }

 private void OnRspQryInstrument_3(IntPtr pTraderApi, ref CThostFtdcInstrumentField pInstrument, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     OnRspQryInstrument_1(this, pTraderApi, ref pInstrument, ref pRspInfo, nRequestID, bIsLast);
 }

 private void OnErrRtnQuoteInsert_3(IntPtr pTraderApi, ref CThostFtdcInputQuoteField pInputQuote, ref CThostFtdcRspInfoField pRspInfo)
 {
     OnErrRtnQuoteInsert_1(this, pTraderApi, ref pInputQuote, ref pRspInfo);
 }

 private void OnErrRtnOrderInsert_3(IntPtr pTraderApi, ref CThostFtdcInputOrderField pInputOrder, ref CThostFtdcRspInfoField pRspInfo)
 {
     OnErrRtnOrderInsert_1(this, pTraderApi, ref pInputOrder, ref pRspInfo);
 }

 public OnErrRtnOrderInsertArgs(IntPtr pTraderApi, ref CThostFtdcInputOrderField pInputOrder, ref CThostFtdcRspInfoField pRspInfo)
 {
     this.pTraderApi = pTraderApi;
     this.pInputOrder = pInputOrder;
     this.pRspInfo = pRspInfo;
 }

 public OnErrRtnOrderActionArgs(IntPtr pTraderApi, ref CThostFtdcOrderActionField pOrderAction, ref CThostFtdcRspInfoField pRspInfo)
 {
     this.pTraderApi = pTraderApi;
     this.pOrderAction = pOrderAction;
     this.pRspInfo = pRspInfo;
 }

 public OnDisconnectArgs(IntPtr pApi, ref CThostFtdcRspInfoField pRspInfo, ConnectionStatus step)
 {
     this.pApi = pApi;
     this.pRspInfo = pRspInfo;
     this.step = step;
 }

 public OnRspQryTradingAccountArgs(IntPtr pTraderApi, ref CThostFtdcTradingAccountField pTradingAccount, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pTraderApi = pTraderApi;
     this.pTradingAccount = pTradingAccount;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 public OnRspQryOrderArgs(IntPtr pTraderApi, ref CThostFtdcOrderField pOrder, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pTraderApi = pTraderApi;
     this.pOrder = pOrder;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 public OnRspQryInvestorPositionDetailArgs(IntPtr pTraderApi, ref CThostFtdcInvestorPositionDetailField pInvestorPositionDetail, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pTraderApi = pTraderApi;
     this.pInvestorPositionDetail = pInvestorPositionDetail;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 public OnRspQryInstrumentMarginRateArgs(IntPtr pTraderApi, ref CThostFtdcInstrumentMarginRateField pInstrumentMarginRate, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     this.pTraderApi = pTraderApi;
     this.pInstrumentMarginRate = pInstrumentMarginRate;
     this.pRspInfo = pRspInfo;
     this.nRequestID = nRequestID;
     this.bIsLast = bIsLast;
 }

 private void OnRspQryOrder_callback(IntPtr pTraderApi, ref CThostFtdcOrderField pOrder, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     if (null != OnRspQryOrder)
     {
         OnRspQryOrder(this, new OnRspQryOrderArgs(pTraderApi, ref pOrder, ref pRspInfo, nRequestID, bIsLast));
     }
 }

 private void OnRspQryTradingAccount_callback(IntPtr pTraderApi, ref CThostFtdcTradingAccountField pTradingAccount, ref CThostFtdcRspInfoField pRspInfo, int nRequestID, bool bIsLast)
 {
     if (null != OnRspQryTradingAccount)
     {
         OnRspQryTradingAccount(this, new OnRspQryTradingAccountArgs(pTraderApi, ref pTradingAccount, ref pRspInfo, nRequestID, bIsLast));
     }
 }

        private void OnDisconnect_callback(IntPtr pApi, ref CThostFtdcRspInfoField pRspInfo, ConnectionStatus step)
        {
            if(isConnected)
            {
                if (7 == pRspInfo.ErrorID//综合交易平台：还没有初始化
                    || 8 == pRspInfo.ErrorID)//综合交易平台：前置不活跃
                {
                    Disconnect_TD();
                    Connect_TD();
                }
            }

            if (null != OnDisconnect)
            {
                OnDisconnect(this, new OnDisconnectArgs(pApi, ref pRspInfo, step));
            }
        }

 private void OnErrRtnQuoteAction_3(IntPtr pTraderApi, ref CThostFtdcQuoteActionField pQuoteAction, ref CThostFtdcRspInfoField pRspInfo)
 {
     OnErrRtnQuoteAction_1(this, pTraderApi, ref pQuoteAction, ref pRspInfo);
 }

 private void OnErrRtnOrderAction_callback(IntPtr pTraderApi, ref CThostFtdcOrderActionField pOrderAction, ref CThostFtdcRspInfoField pRspInfo)
 {
     if (null != OnErrRtnOrderAction)
     {
         OnErrRtnOrderAction(this, new OnErrRtnOrderActionArgs(pTraderApi, ref pOrderAction, ref pRspInfo));
     }
 }