How to call an NT method inside a user defined class?

[CaptainAmericaXX]

Hello,
I've created my own class that is nested inside a partial class Indicator. I've created several very simple bool methods that use NT methods. I figured that having my class inherit from Indicator would give me access to NT methods. The code does compile when I implement the NT methods, but when the object is called inside another class that inherits from Indicator the NT methods all return false. I will give one example.

The code to return:
namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator
{
public class MyClass : Indicator
{
public bool JKWilliamsFastLine24Range_IsFalling
(ISeries<double> jkWilliamsFastLine_24Range)
{
return IsFalling(jkWilliamsFastLine_24Range);
}
}
}
}

The code to implement
namespace NinjaTrader.NinjaScript.Indicators
{
public class A1TradeChart : Indicator
{
protected override void OnBarUpdate()
{
Print(CurrentBar);
Print("Falling = " + myClass.JKWilliamsFastLine24Range_IsFalling(jKWill iams_24Range.JKWilliams_Fast));
}
}
}

Output returns false on every bar.

If I place the method
public bool JKWilliamsFastLine24Range_IsFalling
(ISeries<double> jkWilliamsFastLine_24Range)
{
return IsFalling(jkWilliamsFastLine_24Range);
}
inside public partial class Indicator and outside MyClass the method works as expected.

What must I do to gain access to NT methods inside my personal classes?

Thanks

[NinjaTrader_BrandonH]

Hello CaptainAmericaXX,

Thanks for your post.

To clarify, are these custom methods within a custom AddOn script?

You can create a new AddOn script and then create variables and methods that can be accessed from all indicators and strategies.

To access the method from another script, you will need to use the class name and then the method name.

You could find information about partial classes and sample code on the help guide page below.
https://ninjatrader.com/support/helpGuides/nt8/index.html?code_breaking_changes.htm#Implementatio nChangesOverview

Information about creating partial classes in C# could also be found on the forum thread linked below.

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/90810-partial-class-for-all-of-ninjascript?p=758119#post758119

[CaptainAmericaXX]

BrandonH,
Thanks for your reply,

These are custom methods, but return a NT bool method.

My scripts are partial classes within the AddOn folder.

As per your suggestion from the thread, if I make my class static then I can't inherit from Indicator and can't use the IsFalling().

public static class Test: Indicator
{
public static bool JKWilliamsFastLine24Range_IsFalling
(ISeries<double> jkWilliamsFastLine_24Range)
{
return IsFalling(jkWilliamsFastLine_24Range);
}
}

This is not allowed as a static class can't inherit.

[NinjaTrader_BrandonH]

Hello CaptainAmericaXX,

Thanks for your notes.

You would need to pass the indicator instance this method is in as a parameter to your custom method.

As an example, you would add YourIndicatorsType myIndicator as a parameter to the method, and then inside the method you could use myIndicator.SomeNinjaScriptMethod().

Here is a help guide page with information about partial classes and sample code on the help guide page below.

https://ninjatrader.com/support/helpGuides/nt8/index.html?code_breaking_changes.htm#ImplementationChangesOverview