Error on calling 'OnBarUpdate' method on bar 11

[Jorge.andres.o]

Hello,

I am getting the following error every time I try to enable an strategy. The strategy compiles just fine with no errors. The problem arises when I try to run strategy analyzer or enable it on a chart.

The error is:

Strategy 'XXXXXX': Error on calling 'OnBarUpdate' method on bar 11: Unable to cast object of type 'NinjaTrader.NinjaScript.Indicators.ATR' to type 'System.IConvertible'.

These are the parts of the code in which the ATR plays a role. I have not been able to spot the problem. Would you please help me?



#region Class Variables

private ATR Atr;

protected override void OnStateChange()
{
//Set defaults
if (State == State.SetDefaults)
{
BolPeriod = 9;


}
else if (State == State.Configure)
{

}
else if (State == State.DataLoaded)
{

//Create strategy indicators

Atr = ATR(Close, Convert.ToInt32(BolPeriod));
}

case 03:
EnterLongLimit(0, true, Convert.ToInt32(Order01LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.25 * TickSize), "LE01");;
EnterLongLimit(0, true, Convert.ToInt32(Order02LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.5 * TickSize), "LE02");
EnterLongLimit(0, true, Convert.ToInt32(Order03LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.75 * TickSize), "LE03");
break;

case 02:
EnterLongLimit(0, true, Convert.ToInt32(Order01LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.25 * TickSize), "LE01");;
EnterLongLimit(0, true, Convert.ToInt32(Order02LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.5 * TickSize), "LE02");
break;

case 01:
EnterLongLimit(0, true, Convert.ToInt32(Order01LotSize), Close[0] - (Convert.ToInt32(Atr) * 0.25), "LE01");
break;

#Properties

[NinjaScriptProperty]
[Range(1, int.MaxValue)]
[Display(Name="BolPeriod", Description="Periodo Bollinger", Order=42, GroupName="Order Inputs")]
private int BolPeriod
{ get; set; }

[NinjaTrader_ChrisL]

Hello, thanks for your question.

Your Atr object is of type Series<double>, so it must be indexed to get a value. E.g.

EnterLongLimit(0, true, Convert.ToInt32(Order01LotSize), Close[0] - (Convert.ToInt32(Atr[0]) * 0.25 * TickSize), "LE01"); //this index will give you the ATR value of the most recently closed bar.

Please let me know if I can assist any further.

[Jorge.andres.o]

Thank you Chris