Limit Martingale trade to certain amount of try

With the sample Martingale trading bot, I am wondering how to improve the code to limit the martingale trade to centain amount of try. For example, when the stoploss is hit and the cBot already tried doubling the volume amount for the new order, I want to stop the cBot to do this for 3-4 times and stop. Then I want the trade to be opened randomly again. 

I am very new and inexperienced to this. Any help would be very appreciated. 

// -------------------------------------------------------------------------------------------------
//
//    This code is a cTrader Automate API example.
//
//    This cBot is intended to be used as a sample and does not guarantee any particular outcome or
//    profit of any kind. Use it at your own risk.
//    
//    All changes to this file might be lost on the next application update.
//    If you are going to modify this file please make a copy using the "Duplicate" command.
//
//    The "Sample Martingale cBot" creates a random Sell or Buy order. If the Stop loss is hit, a new 
//    order of the same type (Buy / Sell) is created with double the Initial Volume amount. The cBot will 
//    continue to double the volume amount for  all orders created until one of them hits the take Profit. 
//    After a Take Profit is hit, a new random Buy or Sell order is created with the Initial Volume amount.
//
// -------------------------------------------------------------------------------------------------

using System;
using System.Linq;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using cAlgo.Indicators;

namespace cAlgo
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SampleMartingalecBot : Robot
    {
        [Parameter("Initial Quantity (Lots)", Group = "Volume", DefaultValue = 1, MinValue = 0.01, Step = 0.01)]
        public double InitialQuantity { get; set; }

        [Parameter("Stop Loss", Group = "Protection", DefaultValue = 40)]
        public int StopLoss { get; set; }

        [Parameter("Take Profit", Group = "Protection", DefaultValue = 40)]
        public int TakeProfit { get; set; }


        private Random random = new Random();

        protected override void OnStart()
        {
            Positions.Closed += OnPositionsClosed;

            ExecuteOrder(InitialQuantity, GetRandomTradeType());
        }

        private void ExecuteOrder(double quantity, TradeType tradeType)
        {
            var volumeInUnits = Symbol.QuantityToVolumeInUnits(quantity);
            var result = ExecuteMarketOrder(tradeType, SymbolName, volumeInUnits, "Martingale", StopLoss, TakeProfit);

            if (result.Error == ErrorCode.NoMoney)
                Stop();
        }

        private void OnPositionsClosed(PositionClosedEventArgs args)
        {
            Print("Closed");
            var position = args.Position;

            if (position.Label != "Martingale" || position.SymbolName != SymbolName)
                return;

            if (position.GrossProfit > 0)
            {
                ExecuteOrder(InitialQuantity, GetRandomTradeType());
            }
            else
            {
                ExecuteOrder(position.Quantity * 2, position.TradeType);
            }
        }

        private TradeType GetRandomTradeType()
        {
            return random.Next(2) == 0 ? TradeType.Buy : TradeType.Sell;
        }
    }
}