iterating Highs and lows

[edstaffin]

Hi,
This seems like it should be so simple.
This is in OnBarUpdate and Bars.Count is 1029.
So why is it barfing when i == 13 with a null reference exception?

if(CurrentBar == 0)
{
for (i = 0; i < Count; i++)
Print(High[i].ToString());

}

Thanks ... Ed

[Harry]

Hi,
This seems like it should be so simple.
This is in OnBarUpdate and Bars.Count is 1029.
So why is it barfing when i == 13 with a null reference exception?

if(CurrentBar == 0)
{
for (i = 0; i < Count; i++)
Print(High[i].ToString());

}

Thanks ... Ed

CurrentBar == 0 is the first bar on your chart. High[1] would be the high of the bar prior to the first bar. Obviously there is no such bar. High[i] would be the high of the bar i bars prior to the first bar. Obviously there is no such bar either.

For (CurrentBar == 0) only High[0] is available.

[NinjaTrader_PaulH]

Hello Ed,

Thanks for your post and to follow up on Harry's comments your conditional statement if (CurrentBar == 0) is checking for the very first bar loaded, Bar 0.

Bar1029 would be the bar on the right edge.

Please let us know if you have further questions.