private void RecalculateSummaryByOrders(ExecuteOrderSummaryItem rangeSummaryItem)
        {
            ExecuteOrderSummaryItem instrumentSummaryItem = this.ExecuteOrderSummaryItems.SingleOrDefault(P => P.Instrument.Id == rangeSummaryItem.Instrument.Id);

             instrumentSummaryItem.Update(rangeSummaryItem, false);

            foreach (ExecuteOrderSummaryItem orderSummaryItem in rangeSummaryItem.ChildSummaryItems)
            {
                if (rangeSummaryItem.MinNumeratorUnit > orderSummaryItem.MinNumeratorUnit)
                {
                    rangeSummaryItem.MinNumeratorUnit = orderSummaryItem.MinNumeratorUnit;
                }
                if (rangeSummaryItem.MaxDenominator < orderSummaryItem.MaxDenominator)
                {
                    rangeSummaryItem.MaxDenominator = orderSummaryItem.MaxDenominator;
                }
                rangeSummaryItem.Update(rangeSummaryItem, true);
            }
        }
 private void AddOrderSummaryItem(ExecuteOrderSummaryItem rangeSummaryItem, Order order)
 {
     ExecuteOrderSummaryItem orderSummaryItem = rangeSummaryItem.ChildSummaryItems.SingleOrDefault(P => P.Id == order.Id.ToString());
     if (orderSummaryItem == null)
     {
         orderSummaryItem = new ExecuteOrderSummaryItem(order);
         rangeSummaryItem.ChildSummaryItems.Add(orderSummaryItem);
         rangeSummaryItem.Update(orderSummaryItem, true);
         rangeSummaryItem.SetAvgPrice();
     }
 }