How can I use Volumetric and DataSeries in AddOns?

[tonystarks]

I'm trying to share code between a strategy and indicator without having to duplicate it. It seems that AddOns is the way to do it. However, I can't seem to use them in AddOns.

#region Using declarations
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.Gui.Tools;
#endregion

//This namespace holds Add ons in this folder and is required. Do not change it.
namespace NinjaTrader.NinjaScript.AddOns
{
    public class MyCustomAddOn : NinjaTrader.NinjaScript.AddOnBase
    {
        protected override void OnStateChange()
        {
            if (State == State.SetDefaults)
            {
                Description                                    = @"Enter the description for your new custom Add on here.";
                Name                                        = "MyCustomAddOn";
            }
            else if (State == State.Configure)
            {
                AddVolumetric(Instrument.FullName, BarsPeriodType.Range, 15, VolumetricDeltaType.BidAsk, 1);
                AddDataSeries(Instrument.FullName, BarsPeriodType.Tick, 1);
            }
        }
    }
}

​

[NinjaTrader_ChelseaB]

Hello tonystarks,

Is the indicator hosted by a host strategy? (Meaning does the strategy call the indicator and add the indicator to the chart with AddDataSeries())?

If not, typically we would recommend a partial class, however we would recommend a partial class separate for indicators than strategies. A partial class of NinjaScript may work, but you also may find not all objects and tools available to indicators and strategies are available.

Below is a link to an example of a partial class.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/1142334-is-it-possible-to-hide-an-indicator-from-the-list-in-the-indicator-window#post1142340

With a custom addon class that is not a partial class, you will not be able to add data series directly.
If you pass the instance of the indicator or strategy to a static addon method, you can use that instance to perform functions.

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