for (int i = (startBarIndex) ; i < CurrentBar; i++) {if (GetValueAt(i) != null && GetValueAt(i) > selectedFirstPrice) hit++;}
Error message:
System.NullReferenceException: Object reference not set to an instance of an object.
at NinjaTrader.Data.BarsSeries.GetClose(Int32 index)
at NinjaTrader.Data.Bars.GetClose(Int32 index)
at NinjaTrader.NinjaScript.NinjaScriptBase.GetValueAt (Int32 barIndex)
at NinjaTrader.NinjaScript.Indicators.MyNT8SupplyDema ndZones.OnRender(ChartControl chartControl, ChartScale chartScale)
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