Out of range error

[Itachi]

I have two if statements, one detects a cross above a level of an indicator the other detects a cross below a level of the indicator. There is nothing fancy about the code just two simple if statements. The first "IF" functions fine, however when I add in the second "IF" statement now I get an "Out of range error"

The first IF STATEMENT :
if (Default[0] > 70 && Default[1] <= 70)
{
startBarsAgo = CurrentBar;
Draw.VerticalLine(this, @"xAbove70" + Bars.Count.ToString(),
0, Brushes.HotPink, DashStyleHelper.Dot, 2);
Print(string.Format("Start bar : {0}", startBarsAgo.ToString()));
}

The second IF STATEMENT :
if (Default[0] < 70 && Default[1] >= 70)
{
endBarsAgo = CurrentBar;
Draw.VerticalLine(this, @"xBelow70" + Bars.Count.ToString(),
0, Brushes.Cyan, DashStyleHelper.Dash, 2);
Print(string.Format("End bar : {0}", endBarsAgo.ToString()));
}

[Itachi]

So in trouble shooting I tried putting a try/catch block around the second "IF" statement and it works, however I could still use some insight into what is going on, what I'm missing. Also, no exception is being thrown and output to the console.

[Leeroy_Jenkins]

My guess is you're accessing Default value 1 bar ago at CurrentBar = 0. It works in the first if statement because Default[0] > 70 is false so it doesn't check Default[1] <= 70 because it's the way && operator works.

So place this at start of your code:
if(CurrentBar <1) return;

[Itachi]

Thanks Leeroy, that worked out.

[NinjaTrader_ChelseaB]

Hello Itachi,

Below is a link to a forum post on indexing errors.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/1046200-indicator-that-calculate-in-different-chartime?p=1048513#post1048513

Leeroy_Jenkins, thank you for providing this guidance.