why this simple code will fail?

[manson4134]

I am trying to write my first indicator, inside day
but try hard and always fail
can any one help?
thanks

protected override void OnBarUpdate()
{
if (CurrentBar < 1) return ;
if (High[0] < High[1] && Low[0] > Low[1])
ID[0] = 1 ; // inside
else if (High[0] > High[1] && Low[0] < Low[1])
ID[0] = -1 ;// outside
else
ID[0] = 0 ; // neither
}

[NinjaTrader_PatrickH]

Hello manson4134,

Thank you for your post and welcome to the NinjaTrader Support Forum!

Check your Log tab on the Control Center, likely an error is present on not having the data available before accessing it. Please refer to the post at the following link for more information: http://ninjatrader.com/support/forum...ead.php?t=3170

If you have any questions please let me know.

[tradesmart]

if(High[0] < High[1] && Low[0] > Low[1]) // inside day
ID_bar=1;
else
ID_bar=-1;

ID[0]=ID_bar; //draw ID on chart window but show nothing

Since you'll need to have a least 2 bars on the chart, check CurrentBar to make sure:

        protected override void OnBarUpdate()
        {
            if (CurrentBar < 1) return ;
            if (High[0] < High[1] && Low[0] > Low[1])
                ID[0] = 1 ; // inside 
            else if (High[0] > High[1] && Low[0] < Low[1])
                ID[0] = -1 ;// outside 
            else
                ID[0] = 0 ; // neither
        }

[manson4134]

Thank you!

Hello manson4134,

Thank you for your post and welcome to the NinjaTrader Support Forum!

Check your Log tab on the Control Center, likely an error is present on not having the data available before accessing it. Please refer to the post at the following link for more information: http://ninjatrader.com/support/forum...ead.php?t=3170

If you have any questions please let me know.

I already get it done, it work!
Thanks both of you!!