/// <summary>
        /// 
        /// </summary>
        protected override string OnExecuteMarket(ISourceOrderExecution provider, OrderTypeEnum orderType, int volume, 
            decimal? price, decimal? slippage, decimal? takeProfit, decimal? stopLoss, TimeSpan timeOut,
            out PositionExecutionInfo executionInfo, out string operationResultMessage)
        {
            SystemMonitor.CheckError(provider.SupportsActiveOrderManagement, "Wrong position type for this provider.");

            executionInfo = PositionExecutionInfo.Empty;

            IQuoteProvider quoteProvider = _manager.ObtainQuoteProvider(_dataDelivery.SourceId, Symbol);
            if (quoteProvider == null)
            {
                operationResultMessage = "Failed to establish quote provider for [" + _dataDelivery.SourceId.Name + ", " + Symbol.Name + "].";
                SystemMonitor.Error(operationResultMessage);
                return string.Empty;
            }

            price = ProcessPrice(quoteProvider, orderType, price);

            // New order shall be created.
            ActiveOrder order = new ActiveOrder(_manager, provider, quoteProvider, _dataDelivery.SourceId, Symbol, true);

            OrderInfo? infoReference;

            // Using the extended operationTimeOut to 40 seconds.
            bool result = provider.SynchronousExecute(provider.DefaultAccount.Info, order, _info.Symbol,
                orderType, volume, slippage, price, takeProfit, stopLoss, string.Empty, TimeSpan.FromSeconds(40), out infoReference, out operationResultMessage);

            if (result && infoReference.HasValue)
            {
                OrderInfo infoAssign = infoReference.Value;
                if (infoAssign.Type == OrderTypeEnum.UNKNOWN)
                {
                    infoAssign.Type = orderType;
                }

                if (infoAssign.Volume == int.MinValue
                    || infoAssign.Volume == int.MaxValue)
                {// Volume was not retrieved by integration.
                    infoAssign.Volume = volume;
                }

                if (infoAssign.OpenPrice.HasValue)
                {
                    executionInfo = new PositionExecutionInfo(infoReference.Value.Id, _dataDelivery.SourceId, provider.SourceId, Symbol,
                        infoAssign.Type, infoAssign.OpenPrice.Value, volume, volume,
                        infoAssign.OpenTime, PositionExecutionInfo.ExecutionResultEnum.Success);
                }
                else
                {
                    SystemMonitor.Error("Received execution result, but price not assigned.");
                }

                order.AdoptInfo(infoAssign);

                provider.TradeEntities.AddOrder(order);
                return infoReference.Value.Id;
            }

            return string.Empty;
        }
        /// <summary>
        ///
        /// </summary>
        protected override string OnExecuteMarket(ISourceOrderExecution provider, OrderTypeEnum orderType, int volume,
                                                  decimal?price, decimal?slippage, decimal?takeProfit, decimal?stopLoss, TimeSpan timeOut,
                                                  out PositionExecutionInfo executionInfo, out string operationResultMessage)
        {
            SystemMonitor.CheckError(provider.SupportsActiveOrderManagement == false, "Wrong position type for this provider.");

            executionInfo = PositionExecutionInfo.Empty;
            PassiveOrder order;

            lock (this)
            {
                order = new PassiveOrder(_manager, _dataDelivery.SourceId, provider.SourceId);
            }

            OrderInfo?infoReference;

            bool result = provider.SynchronousExecute(provider.DefaultAccount.Info, order, _info.Symbol,
                                                      orderType, volume, slippage, price, takeProfit, stopLoss, string.Empty, out infoReference, out operationResultMessage);

            if (result && infoReference.HasValue)
            {
                OrderInfo infoAssign = infoReference.Value;
                if (infoAssign.Type == OrderTypeEnum.UNKNOWN)
                {
                    infoAssign.Type = orderType;
                }

                if (infoAssign.Volume == int.MinValue ||
                    infoAssign.Volume == int.MaxValue)
                {// Volume was not retrieved by integration.
                    infoAssign.Volume = volume;
                }

                if (infoAssign.OpenPrice.HasValue)
                {
                    executionInfo = new PositionExecutionInfo(infoReference.Value.Id, _dataDelivery.SourceId, provider.SourceId, Symbol,
                                                              infoAssign.Type, infoAssign.OpenPrice.Value, volume, volume,
                                                              infoAssign.OpenTime, PositionExecutionInfo.ExecutionResultEnum.Success);
                }
                else
                {
                    SystemMonitor.Error("Received execution result, but price not assigned.");
                }

                order.AdoptInfo(infoAssign);

                provider.TradeEntities.AddOrder(order);

                return(infoReference.Value.Id);
            }

            return(string.Empty);
        }
        /// <summary>
        /// 
        /// </summary>
        protected override string OnExecuteMarket(ISourceOrderExecution provider, OrderTypeEnum orderType, int volume, 
            decimal? price, decimal? slippage, decimal? takeProfit, decimal? stopLoss, TimeSpan timeOut, 
            out PositionExecutionInfo executionInfo, out string operationResultMessage)
        {
            SystemMonitor.CheckError(provider.SupportsActiveOrderManagement == false, "Wrong position type for this provider.");

            executionInfo = PositionExecutionInfo.Empty;
            PassiveOrder order;
            lock (this)
            {
                order = new PassiveOrder(_manager, _dataDelivery.SourceId, provider.SourceId);
            }

            OrderInfo? infoReference;

            bool result = provider.SynchronousExecute(provider.DefaultAccount.Info, order, _info.Symbol,
                orderType, volume, slippage, price, takeProfit, stopLoss, string.Empty, out infoReference, out operationResultMessage);

            if (result && infoReference.HasValue)
            {
                OrderInfo infoAssign = infoReference.Value;
                if (infoAssign.Type == OrderTypeEnum.UNKNOWN)
                {
                    infoAssign.Type = orderType;
                }

                if (infoAssign.Volume == int.MinValue
                    || infoAssign.Volume == int.MaxValue)
                {// Volume was not retrieved by integration.
                    infoAssign.Volume = volume;
                }

                if (infoAssign.OpenPrice.HasValue)
                {
                    executionInfo = new PositionExecutionInfo(infoReference.Value.Id, _dataDelivery.SourceId, provider.SourceId, Symbol,
                        infoAssign.Type, infoAssign.OpenPrice.Value, volume, volume,
                        infoAssign.OpenTime, PositionExecutionInfo.ExecutionResultEnum.Success);
                }
                else
                {
                    SystemMonitor.Error("Received execution result, but price not assigned.");
                }

                order.AdoptInfo(infoAssign);

                provider.TradeEntities.AddOrder(order);

                return infoReference.Value.Id;
            }

            return string.Empty;
        }
        /// <summary>
        ///
        /// </summary>
        protected override string OnExecuteMarket(ISourceOrderExecution provider, OrderTypeEnum orderType, int volume,
                                                  decimal?price, decimal?slippage, decimal?takeProfit, decimal?stopLoss, TimeSpan timeOut,
                                                  out PositionExecutionInfo executionInfo, out string operationResultMessage)
        {
            SystemMonitor.CheckError(provider.SupportsActiveOrderManagement, "Wrong position type for this provider.");

            executionInfo = PositionExecutionInfo.Empty;

            IQuoteProvider quoteProvider = _manager.ObtainQuoteProvider(_dataDelivery.SourceId, Symbol);

            if (quoteProvider == null)
            {
                operationResultMessage = "Failed to establish quote provider for [" + _dataDelivery.SourceId.Name + ", " + Symbol.Name + "].";
                SystemMonitor.Error(operationResultMessage);
                return(string.Empty);
            }

            price = ProcessPrice(quoteProvider, orderType, price);

            // New order shall be created.
            ActiveOrder order = new ActiveOrder(_manager, provider, quoteProvider, _dataDelivery.SourceId, Symbol, true);

            OrderInfo?infoReference;

            // Using the extended operationTimeOut to 40 seconds.
            bool result = provider.SynchronousExecute(provider.DefaultAccount.Info, order, _info.Symbol,
                                                      orderType, volume, slippage, price, takeProfit, stopLoss, string.Empty, TimeSpan.FromSeconds(40), out infoReference, out operationResultMessage);

            if (result && infoReference.HasValue)
            {
                OrderInfo infoAssign = infoReference.Value;
                if (infoAssign.Type == OrderTypeEnum.UNKNOWN)
                {
                    infoAssign.Type = orderType;
                }

                if (infoAssign.Volume == int.MinValue ||
                    infoAssign.Volume == int.MaxValue)
                {// Volume was not retrieved by integration.
                    infoAssign.Volume = volume;
                }

                if (infoAssign.OpenPrice.HasValue)
                {
                    executionInfo = new PositionExecutionInfo(infoReference.Value.Id, _dataDelivery.SourceId, provider.SourceId, Symbol,
                                                              infoAssign.Type, infoAssign.OpenPrice.Value, volume, volume,
                                                              infoAssign.OpenTime, PositionExecutionInfo.ExecutionResultEnum.Success);
                }
                else
                {
                    SystemMonitor.Error("Received execution result, but price not assigned.");
                }

                order.AdoptInfo(infoAssign);

                provider.TradeEntities.AddOrder(order);
                return(infoReference.Value.Id);
            }

            return(string.Empty);
        }