How to add another script into chart

[ttodua]

I have custom class in MyCustomMethods

public class myPositionInfo : Indicator
	{
		private readonly StringFormat	far			= new StringFormat {Alignment = StringAlignment.Far};
		private readonly Font			font1		= new Font("Arial", 9, FontStyle.Bold);
		private readonly StringFormat	near		= new StringFormat {Alignment = StringAlignment.Near};
		private readonly Pen			pen			= new Pen(Color.Black);
		private readonly Brush			redbrush	= new SolidBrush(Color.FromArgb(250, Color.Red));

		[Browsable(false)] public	double		OpenPl		{ get; set;}  
		protected	override	void	Initialize()	{		Overlay = true;	}

		protected	override	void	OnBarUpdate()	{}

		public	override	void	Plot(Graphics graphics, Rectangle bounds, double min, double max)
		{
			if (ChartControl == null) 				return;

			graphics.FillRectangle(graybrush,	5, bounds.Height - 67, 210, 47);
			graphics.DrawRectangle(pen,			5, bounds.Height - 67, 210, 47);
			graphics.DrawString("Tracked P&L :"+OpenPl, font1, redbrush, 135f, bounds.Height - 35, far);
		}

	}

However, I am unable to call (thus add it on chart) from another primary indicator, using this:

OnStartup:


myPositionInfo xyz = new myPositionInfo();
Add(xyz); //<--- gives error

How to do that?

[NinjaTrader_ChrisL]

Hello, TazoTodua.

Thanks for the post.

You must make a separate indicator called myPositionInfo. The OnBarUpdate override will not be subscribed in the runtime if the indicator is not initialized by NinjaTrader in the Indicators folder.

Please see this reference sample linked below on plotting from within a strategy. It is a custom strategy that employs a custom indicator.

https://ninjatrader.com/support/forum/showthread.php?t=6651

Also, see this reference sample on exposing values from a custom indicator that are not plots.

https://ninjatrader.com/support/forum/showthread.php?t=4991

Please let us know if we may be of any further assistance.