Error using barsRequest.Request()

[juanram]

I'm having trouble geting this code to work. The error says a null reference in the red line. But I can't seem to find what I'm missing. I'll explain what I'm doing in case that what I'm doing is also incorrect. I'm trying to get the past day info and then check for max and min values to define supports and resistances. I'm doing that with the request method from BarsRequest and then iterating the bars requested.

void limites(){

            //definir suelo i techo
            barsRequest = new BarsRequest(Cbi.Instrument.GetInstrument("ES 6-20"), DateTime.Now.AddDays(-1), DateTime.Now);
            // Parametrize your request.
             barsRequest.BarsPeriod = new BarsPeriod { BarsPeriodType = BarsPeriodType.Minute, Value = 1440 };
              barsRequest.TradingHours = TradingHours.Get("Default 24 x 7");
            //debbug
            if(barsRequest==null){Print("no esta bien hecha la request de vars pasadas");}
            //request
[COLOR=#FF0000]barsRequest.Request(new Action<BarsRequest, ErrorCode, string>((bars, errorCode, errorMessage)[/COLOR] =>
            {
                Print("no hay error aqui");
                if (errorCode != ErrorCode.NoError)
                {
                    // Handle any errors in requesting bars here
                    NinjaTrader.Code.Output.Process(string.Format("Error on requesting bars: {0}, {1}",
                                                    errorCode, errorMessage), PrintTo.OutputTab1);
                    return;
                }
                //debbug
                 //Print("bars: " + bars.Bars.Count);
                for (int i = 0; i < bars.Bars.Count; i++)
                {    
                        if(bars.Bars.GetHigh(i)>techo){ //calculo techo con RANGO=X
                            techo=bars.Bars.GetHigh(i);
                        }
                        if(bars.Bars.GetLow(i)<suelo){  //calculo suelo con RANGO=X
                            suelo=bars.Bars.GetLow(i);
                        }
                }
            }));

            Print("Techo definido en: " + techo + ", suelo definido en: " + suelo);

        }

I'm also attaching a photo from the debbuger.

[NinjaTrader_ChelseaB]

Hello juanram,

Below are links to working examples of BarsRequest you can use as a starting point.

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/87988-barsrequest-question?p=742518#post742518

https://ninjatrader.com/support/forum/forum/ninjatrader-8/add-on-development/97523-receiving-onbarupdate-for-multiple-instruments?p=786208#post786208

Is the barsRequest object null?

Does the print you have added appear in the output window?