draw lines only for current session

[trader3000a]

Hi, I made an indicator that draws lines to show me gaps between highs and lows a couple bars apart, but I can't find a way to get it to only draw the lines for that day/session. The only choices i have in the "maximum bars lookback" box of the setup are 256 or infinite. I end up with a screen covered in lines. I only want the lines drawn for the current session. Is there a way?
thanks,
David

protected override void OnBarUpdate()
{
if (BarsInProgress != 0)
return;

if (CurrentBars[0] < 2)
return;




// Set 1
if (High[0] < Low[2])
{
Draw.HorizontalLine(this, "DownGaplineHigh" + CurrentBar, Low[2], Brushes.Red);
Draw.HorizontalLine(this, "DownGaplineLow"+ CurrentBar , High[0], Brushes.Green);
}

if (Low[0] > High[2])
{
Draw.HorizontalLine(this, "upGaplineLow"+ CurrentBar , Low[0], Brushes.Magenta);
Draw.HorizontalLine(this, "upGaplineHigh" + CurrentBar, High[2], Brushes.Chartreuse);
}

[NinjaTrader_Jesse]

Hello trader3000a,

You would need to use a Line tool if you wanted to span between bars instead of across the chart. When using the Line tool it asks for a BarsAgo which you could use Bars.BarsSinceNewTradingDay as the start bars ago. 0 would be used for the end BarsAgo. You could update the line at a later time using the same values to extend it onto any new bars where it should be visible.

https://ninjatrader.com/support/helpGuides/nt8/barssincenewtradingday.htm?zoom_highlightsub=Bars.BarsSinceNewTradingDay

https://ninjatrader.com/support/helpGuides/nt8/draw_line.htm?zoom_highlightsub=draw.line