How to submit a single order?

KMATrade

I am still learning.
I am stuck, try and error.
The code is attached. It opens trades when the bar closes 200EMA, 50EMA, and PSAR
Issue: 1. it keeps opening trades as long as the price is above 200EMA. 50EMA and PSAR.
Please can you help with what code to add to allow the bot to open ONLY 1 trade not the continuation of trades?

Parameters "bool" YES or NO do not work does not matter if selected or not. What code is required to make this option work.

protected override void OnStart()
{
    //Load indicators on start up
    
   pSAR = Indicators.ParabolicSAR(MinAF, MaxAF);
   maFast = Indicators.MovingAverage(Source, MaFastPeriod, MaFastType);
   maSlow = Indicators.MovingAverage(Source, MaSlowPeriod, MaSlowType);
   volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);
   
   Print("Current EMA Value:", maSlow.Result.Last(0));
   Print("Current EMA Value:", maSlow.Result.Last(0));
 }
protected override void OnBar()
{
  int total = Bars.ClosePrices.Count;

   // Put your entry logic here 
            {
                if (Bars.ClosePrices.Last(0) > pSAR.Result.Last(0) && Bars.ClosePrices.Last(0) > maFast.Result.Last(0) && Bars.ClosePrices.Last(0) > maSlow.Result.Last(0) && Positions.Count==0)      
                {
                    ExecuteMarketOrder(TradeType.Buy, SymbolName, volumeInUnits, "Price Cross", SL, TP);
                }
                else if (Bars.ClosePrices.Last(0) < pSAR.Result.Last(0) && Bars.ClosePrices.Last(0) < maFast.Result.Last(0) && Bars.ClosePrices.Last(0) < maSlow.Result.Last(0) && Positions.Count==0)
                {
                    ExecuteMarketOrder(TradeType.Sell, SymbolName, volumeInUnits, "Price Cross", SL, TP);
                }

Mike

You can do this by calling the method below to check if there are any trades open for this symbol.

  private bool IsPositionOpen()
        {
            var p = Positions.FindAll(string.Empty, SymbolName);

            if (p.Count() >= 1)
            {
                return true;
            }

            return false;
        }

This is a simple check, you can filter further, you then call this method by placing the line of code before you execute an order.

 if (IsPositionOpen())
                return;