External classes and functions

[savekad]

Hi,

I have a custom made class and several functions which I need for more than one indicator.

Can I save the class and the functions on an external .cs file and code the indicators to read the class and the functions from that file?

And if not, what is the best way to store the class and the functions inside NT and have the indicator access them? I really want to avoid unnecessary Update() calls etc. I just want the indicators to read the lines.

[NinjaTrader_JC]

Hello savekad,

Custom classes and referencing external files is possible, but not something that we could support.

The best way you can define your own functions inside of NinjaTrader by using the UserDefinedMethods.cs to be able to access those functions inside of any NinjaScript file. For a few samples on how to use the UserDefinedMethods see the following link to our Help Guide.

http://www.ninjatrader.com/support/h...ed_methods.htm

Let us know if we can be of further assistance.

[savekad]

Sounds good but can I also store classes in the UserDefinedMethod section?

And does it matter if I use the one in Indicators or the one in Strategies?

[NinjaTrader_Joydeep]

Hello savekad,
Yes, you can add custom classes in the UserDefinedMethods too. NinjaScript is essentially C# and will follow all the rules of C# coding.

namespace NinjaTrader.Indicator
{
    /// <summary>
    /// This file holds all user defined indicator methods.
    /// </summary>
    partial class Indicator
    {
    }
	

   public class MyCustomClass
   {
     //implementation here
   }
	
}

[savekad]

And does it matter if I use the one in Indicators or the one in Strategies?

[NinjaTrader_JC]

Hello savekad,

Indicators and Strategies have there own UserDefinedMethod so you would have to create your custom methods in the one(s) that you would like to use them in. For example if you want to create methods for a strategy you would go to Tools -> Edit NinjaScript -> Strategies -> UserDefinedMethods. You will know if it is a strategy or indicator by the namespace and partial class that it is referencing.