How to use series[0] in VisualStudio 2019

[user10]

Hello to the Forum,

I want to outsource parts of my program into a dll.
My methods use series[0] among others.

If I want to use a series[0] with Visualstudio, I am missing the correct using directive or an assembly reference.

class myClass
{
public double MyDouble (Series<double> unknown(!?) ) {}
}

using System.Web.UI.DataVisualization.Charting;
using System.Windows.Forms.DataVisualization.Charting;
also does not work.

How can I add a series to my class library?

Thanks for your support!
user10

[NinjaTrader_ChelseaB]

Hello user10,

Series<T> objects are constructed using an existing instance of an indicator or strategies primary series. These will not work outside of an indicator or strategy.

You could, however, supply the instance of the strategy or indicator to your custom method.

This would be outside of what is supported by NinjaTrader Support, however I have some examples of static classes that may give you some ideas.

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/83018-partial-class-does-not-work?p=712245#post712245

[user10]

Hello Chelsea,
hello to the forum,

thank you for the hint!
My methods already work within NT8 .
But because the code is quite large in the meantime, I want to swap parts of the code into a dll.
I have already done this successfully for several methods.

My problem is that in my methods a series is often compared.
Example: (if series[0] > series[1]) do something;

Because series[0] does not work in a dll, I tried to solve the problem with an array.
But this solution is quite slow.

Is there any experience how the comparison of current to previous value in a dll can be queried quickly and easily?
Is the integration of Excel an option?

Thanks for your support!
user10

[NinjaTrader_ChelseaB]

Hello user10,

If an instance of a script is provided to an external class, all of the children of that instance can be accessed, such as any Series<T> objects initialized within the script.

Outside of an indicator or strategy class, Series<T> cannot be used.

Excel is far outside of what is supported by NinjaTrader. However, below is a link to a forum thread that has some unsupported tips.

http://www.ninjatrader.com/support/forum/showthread.php?t=36938&page=7