My indicator is keep adding Rectangle into the chart

[LadGta2018]

Hello, my indicator is adding a Rectangle into chart when the last bar closed. But later, I found that every time the bar got updated, my indicator add a new Rectangle in the same place. It is slow down the system after a while.

I tried to use " RemoveDrawObjects();", but it didn't help. Maybe I put it in wrong place. How to fix it?



protected override void OnBarUpdate()
{

if (CurrentBar == ChartBars.Count - 2)
{
Draw.Rectangle(,,,,,,,,,, Brushes.Yellow, Brushes.Yellow, 5);
}
}

[NinjaTrader_Kate]

Hello LadGta2018,

Thank you for your post.

Could you provide your entire Draw.Rectangle statement? Without seeing that there's no way to tell what's occurring.

Thanks in advance; I look forward to assisting you further.

[LadGta2018]

Hello LadGta2018,

Thank you for your post.

Could you provide your entire Draw.Rectangle statement? Without seeing that there's no way to tell what's occurring.

Thanks in advance; I look forward to assisting you further.

Thanks for your help, I figured it out by my self.

I need to use List.clear() to clear my list.