IText.BarsAgo

[GrumpyTrader]

In NT7 IText had a property BarsAgo. Is there a replacement for it with the new Text class?

[NinjaTrader_Matthew]

All draw objects will have some sort of "ChartAnchor" field which exposes this information, rather than a field directly on the interface/object itself.
e.g.,

Text myText = Draw.Text(this, "tag", "test", 0, High[0]);
Print(myText.Anchor.BarsAgo); // the barsAgo value passed to the method
Print(myText.Anchor.DrawnOnBar); // the actual current bar

[NinjaTrader_Matthew]

I meant to also mention that the implementation of barsAgo has changed, if you need the number of actual bars that have passed since the current bar, you need to calculated that from .DrawnOnBar

Print(CurrentBar - myText.Anchor.DrawnOnBar);

[GrumpyTrader]

Hi Matthew,
I use to be able to just set the BarsAgo property (say to -1) on a Text object to get it to move to the end of the chart on the x-axis after every new bar. I assumed this was more efficient than deleting the old one and creating a new one. How would I do that with the new drawing objects?

[NinjaTrader_DaveI]

Hello,

Probably the most efficient way to go about this would be to simply redraw the text. You could call Draw.TextFixed() once more, using the same tag as the previously drawn text, to overwrite the existing instance with a new position.

[NinjaTrader_Matthew]

Hi Matthew,
I use to be able to just set the BarsAgo property (say to -1) on a Text object to get it to move to the end of the chart on the x-axis after every new bar. I assumed this was more efficient than deleting the old one and creating a new one. How would I do that with the new drawing objects?

Hmm, works here...

Draw.Dot(this, "tag", false, -1, High[0], Brushes.Blue);

What chart setup, method, indicator settings, etc are you using?

What is it currently doing instead of moving to the next bar?

[NinjaTrader_Matthew]

If you meant on the IDrawingTool object, you can use the Time[0] property

		protected override void OnBarUpdate()
		{			
		  if(State.Historical == State)
			 myText = Draw.Text(this, "tag", "Test", 5, High[0], Brushes.Blue);
			
		  else if(myText != null)
			myText.Anchor.Time = Time[0];
			
		}

[GrumpyTrader]

Thanks, setting the time works perfectly. Lastly, I'm not sure if it is a bug, but for some reason when using the Ray object the intellisense doesn't show you the Tag property even though it is there.

[NinjaTrader_ChelseaB]

Hi GrumpyTrader,

I was able to confirm that Tag is not in the intellisense list for IDrawingTools.

You can use this, and it will compile if you do, but its not in the list.

I appreciate you reporting this issue.

I have submitted a bug report about this to development. Please let me know if you find any other issues in NT8 you would like to report.