public void Set(QuickFix.Fields.Side val)
 {
     this.Side = val;
 }

        /// <summary>
        /// Helper Method to process data from message for updating positions
        /// </summary>
        /// <param name="message"></param>
        /// <param name="session"></param>
        private void posTableUpdate(QuickFix.FIX42.Message message, SessionID session)
        {
            string MGT = null;
            string acct = null;

            string SecEx = null;
            string symbol = null;
            string secID = null;
            string gateway = null;

            int tradesize = 0;
            char side = char.MinValue;
            decimal price = 0.00M;

            bool OK2Update = true;

            try
            {
                QuickFix.Fields.SenderSubID subID = new QuickFix.Fields.SenderSubID();
                if (message.Header.IsSetField(subID))
                {
                    MGT = message.Header.GetField(subID).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.Account a = new QuickFix.Fields.Account();
                if (message.IsSetField(a))
                {
                    acct = message.GetField(a).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.SecurityExchange se = new QuickFix.Fields.SecurityExchange();
                if (message.IsSetField(se))
                {
                    SecEx = message.GetField(se).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.Symbol s = new QuickFix.Fields.Symbol();
                if (message.IsSetField(s))
                {
                    symbol = message.GetField(s).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.SecurityID sid = new QuickFix.Fields.SecurityID();
                if (message.IsSetField(sid))
                {
                    secID = message.GetField(sid).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.ExchangeGateway eg = new Fields.ExchangeGateway();
                if (message.IsSetField(eg))
                {
                    gateway = message.GetField(eg).getValue();
                }
                else
                { OK2Update = false; }

                QuickFix.Fields.LastShares q = new QuickFix.Fields.LastShares();
                if (message.IsSetField(q))
                {
                    tradesize = (int)message.GetField(q).getValue();
                }

                QuickFix.Fields.Side bs = new QuickFix.Fields.Side();
                if (message.IsSetField(bs))
                {
                    side = message.GetField(bs).getValue();
                }
                else
                {
                    if (tradesize < 0)
                    {
                        tradesize = Math.Abs(tradesize);
                        side = QuickFix.Fields.Side.SELL;
                    }
                    else
                    { side = QuickFix.Fields.Side.BUY; }
                }

                QuickFix.Fields.LastPx fill = new QuickFix.Fields.LastPx();
                if (message.IsSetField(fill))
                {
                    price = message.GetField(fill).getValue();
                }

                if (OK2Update)
//.........这里部分代码省略.........