Multiple Series and Futures Expiration

[sdauteuil]

I want to add a secondary series NQ futures.

AddDataSeries("NQ 12-20", Data.BarsPeriodType.Tick, 1, Data.MarketDataType.Last);

Is there a way to not have to update the symbol expiration in code when the symbol rolls over?

Can I create a user input variable for the secondary data series?
If so what would that look like... just put the variable in place of "NQ 12-20" or would I have to convert it to a string?

[NinjaTrader_ChrisL]

Hello sdauteuil, thanks for writing in.

We generally recommend using the hardcoded string literal in AddDataSeris to avoid issues while running the strategy in the Strategy Analyzer, but you can do this:

AddDataSeries(Instrument.FullName, Data.BarsPeriodType.Tick, 1, Data.MarketDataType.Last);

Please let me know if this does not resolve your inquiry.