Dynamically determining BarsRequired on initialization?

[cgeorgan]

Is this possible? In other words, can I do a calculation in Initialize() whereby I look at my known indicator/strategy parameters, calculate the max value of those, and set that as "BarsRequired"?

[NinjaTrader_Matthew]

Hello,

You can do this in OnStartUp(). Here is a loose example:

			protected override void OnStartUp()
			{
				
				if(Instrument.FullName == "ES 12-12")
				{
					BarsRequired = 20;
				}
				
				if(Instrument.FullName == "NQ 12-12")
				{
					BarsRequired = 100;
				}
			}

[cgeorgan]

Interesting. So my next question is, which comes first - Initialize() or OnStartUp()?

[NinjaTrader_Matthew]

Initialize() will always be called first

http://www.ninjatrader.com/support/helpGuides/nt7/onstartup.htm

Definition
You can override the OnStartUp() method to initialize any variables or resources you wish to use in the custom indicator or strategy. This method is called only once immediately prior to the start of your script processing its logic in OnBarUpdate(), but after the Initialize() method.