Indicator interacting with strategy

[PWillard]

Hi,
I created a sample strategy and a sample indicator.
I would like to know what's the correct way so that I can share data from the strategy to the indicator
Can someone please point me in the right direction.
Thanks

using System;

namespace NinjaTrader.NinjaScript.Strategies {
public class MyCustomStrategy : Strategy {

public DateTime myDate;


protected override void OnStateChange() {
if (State == State.SetDefaults) {
Description = @"Enter the description for your new custom Strategy here.";
Name = "MyCustomStrategy";
Calculate = Calculate.OnEachTick;

} else if (State == State.Configure) {

}
}

public void EnableThis() {
this.IsEnabled = true;
}

public DateTime getMyTime() {
return myDate;
}

protected override void OnBarUpdate() {
myDate = DateTime.UtcNow;
}
}
}

using NinjaTrader.NinjaScript.Strategies;

namespace NinjaTrader.NinjaScript.Indicators {

public class MyCustomIndicator : Indicator {

private MyCustomStrategy testStrategy;

protected override void OnStateChange() {
if (State == State.SetDefaults) {
Description = @"Enter the description for your new custom Indicator here.";
Name = "MyCustomIndicator";
Calculate = Calculate.OnBarClose;

} else if (State == State.Configure) {
testStrategy = new MyCustomStrategy();
testStrategy.EnableThis();
}
}

protected override void OnBarUpdate() {
testStrategy.Update();

Print("Date: " + testStrategy.getMyTime().ToString());
}
}
}

#region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private MyCustomIndicator[] cacheMyCustomIndicator;
public MyCustomIndicator MyCustomIndicator()
{
return MyCustomIndicator(Input);
}

public MyCustomIndicator MyCustomIndicator(ISeries<double> input)
{
if (cacheMyCustomIndicator != null)
for (int idx = 0; idx < cacheMyCustomIndicator.Length; idx++)
if (cacheMyCustomIndicator[idx] != null && cacheMyCustomIndicator[idx].EqualsInput(input))
return cacheMyCustomIndicator[idx];
return CacheIndicator<MyCustomIndicator>(new MyCustomIndicator(), input, ref cacheMyCustomIndicator);
}
}
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.MyCustomIndicator MyCustomIndicator()
{
return indicator.MyCustomIndicator(Input);
}

public Indicators.MyCustomIndicator MyCustomIndicator(ISeries<double> input )
{
return indicator.MyCustomIndicator(input);
}
}
}

namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.MyCustomIndicator MyCustomIndicator()
{
return indicator.MyCustomIndicator(Input);
}

public Indicators.MyCustomIndicator MyCustomIndicator(ISeries<double> input )
{
return indicator.MyCustomIndicator(input);
}
}
}

#endregion

[NinjaTrader_ChelseaB]

Hello PWillard,

Public properties in an indicator can be called from a host strategy (or host indicator).

For this to work the Strategy Builder or with the MarketAnalyzer, the values would need to be set to public plots.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/strategy-development/104516-adxvma-with-ninja-8-strategy-builder?p=812238#post812238

If this is not necessary, any object type can be used, but Update() should be called first.

https://ninjatrader.com/support/helpGuides/nt8/update.htm

On DateTime objects, (or any object types other than int, double, bool, string, enum unless it a custom class that has an explicit internal ToString()), need to use the XmlIgnore() attribute.

https://ninjatrader.com/support/helpGuides/nt8/xmlignoreattribute.htm

[PWillard]

is adding the strategy from "Strategies" a requirement for this to work or it can work by adding the strategy from indicator as "new MyCustomStrategy()"

[NinjaTrader_ChelseaB]

Hello PWillard,

The host script such as a strategy (or another indicator) must call the indicator. The new keyword cannot be used.

You cannot call a strategy from another script the way an indicator can be called from another script.