private void Init(MarketDataMessage mdMsg)
            {
                if (_nextFrom > _to)
                {
                    _nextFrom = _to;
                }

                mdMsg.TransactionId = _adapter.TransactionIdGenerator.GetNextId();
                mdMsg.Count         = _adapter.GetMaxCount(mdMsg.DataType2);
                mdMsg.From          = _currFrom;
                mdMsg.To            = _nextFrom;

                if (mdMsg.Count > _count)
                {
                    mdMsg.Count = _count;
                }

                CurrTransId = mdMsg.TransactionId;
            }