multi instrument add question

[onnb1]

Hi all,

I have a multi instrument indicator and strategy - I want to call Add() and have the period type and period be the same as the Primary Bars.

I need to call Add() in the initialize section but I can see from the docs that BarsPeriod should not be accessed in the initialize section.

Is there a way to do this?

Onn

[NinjaTrader_Bertrand]

Hi Onn, unfortunately we could support dynamic call of Add(). You could pass in a user input though and set as needed from the UI.

[onnb1]

Just to confirm I understand correctly Add can only be called from within Initialize?
Also, I understand that Initialize is called after the properties dialog is shown to the user?

Onn

[NinjaTrader_JC]

Hello Onn,

That is correct on both counts.

[onnb1]

More on this topic

Can I access the instrument name in the Initialize method?
If yes, Instrument.FullName would be the name to pass into Add()?

[NinjaTrader_JC]

Hello Onn,

Yes, you can access the Instrument.FullName inside of the Initialize() method.

Using the Add() method one of the overloads you can add another bars object from the Primary Instrument so you would not need to pass the FullName of the instrument to it.

Add(PeriodType periodType, int period)

http://www.ninjatrader.com/support/helpGuides/nt7/add3.htm

[onnb1]

sweet - thanks!

[onnb1]

I need to create a drop down list of instruments for the user; instruments from this list will be used to call Add(). Is it possible to retrieve one of the NT instrument lists (like the default list)?

I saw that there is an Instruments object - is that the list of instruments that I added to the chart?

[NinjaTrader_JC]

Hello Onnb1,

While we would not be able to support an Instrument drop down menu list for example the "Default" list like inside the chart.

Here are two different examples that may try, but note dynamically selecting an instrument would still but no supported by us.

MA Cross Builder has an selectable MA type that you can use as a reference for a drop down menu list.

http://www.ninjatrader.com/support/forum/local_links.php?action=sendtofriend&catid=4&linkid=426

Spread indicator takes a user defined string for an Instrument name.

http://www.ninjatrader.com/support/forum/local_links.php?action=sendtofriend&catid=4&linkid=367

[onnb1]

Hello Onnb1,

While we would not be able to support an Instrument drop down menu list for example the "Default" list like inside the chart.

Here are two different examples that may try, but note dynamically selecting an instrument would still but no supported by us.

MA Cross Builder has an selectable MA type that you can use as a reference for a drop down menu list.

http://www.ninjatrader.com/support/forum/local_links.php?action=sendtofriend&catid=4&linkid=426

Spread indicator takes a user defined string for an Instrument name.
http://www.ninjatrader.com/support/f...d=4&linkid=367

Thanks for these.
Is there an unsupported/undocumented object through which I can access the instrument list?