Only one stop order tick mode

Hello

   to fix my positions I use this formula that works well ...

      var cBotPositions = Positions.FindAll (RobotID)

                if (cBotPositions.Length > = 1)
                    return;

Does anyone have an equivalent formula for PendingOrders(limit ou stop)?
cordially

using System;
using System.Linq;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using cAlgo.Indicators;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Collections;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.IO;
using System.Reflection;
using System.Threading;
using System.Diagnostics;
using Microsoft.Win32;
using cAlgo.API.Requests;
using System.Text;


namespace cAlgo
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.FullAccess)]
    public class HigGFrequency : Robot
    {

        [Parameter("HigHFreQuencY Label n°", DefaultValue = "1")]
        public string RobotID { get; set; }

        [Parameter("Pip Step", DefaultValue = 7, MinValue = 1)]
        public int PipStepB { get; set; }

        [Parameter("First Quantity(Lots)", DefaultValue = 0.1, MinValue = 0.01, Step = 0.01)]
        public double Quantity { get; set; }

        [Parameter("Cancel Stop Order(MINUTES)", DefaultValue = 120)]
        public int MINUTES { get; set; }

        [Parameter(DefaultValue = 160)]
        public int SL { get; set; }

        [Parameter(DefaultValue = 40)]
        public int TP { get; set; }



        //////////////////////////////////////////////////////////////////////////////////////    
        protected override void OnTick()
        {
            Play();
        }

        private void Play()
        {
            var volumeInUnits = Symbol.QuantityToVolume(Quantity);

            {
                var buyOrderTargetPrice = Symbol.Ask + PipStepB * Symbol.PipSize;

                DateTime exp = MarketSeries.OpenTime.LastValue.AddMinutes(MINUTES);

                PlaceStopOrder(TradeType.Buy, Symbol, volumeInUnits, buyOrderTargetPrice, RobotID, SL, TP, exp);
            }

        }
    }
}