Chart not displaying when added to strategy

[hoozifachi]

I created an indicator named CCIZLR. When I add it to a chart along with the WoodiesCCI indicator, it displays arrows where a ZLR occurs (see twoindicators.png).

However, when I add the two indicators to a chart within my WoodiesZLR1 strategy , the arrows from CCIZLR are not displayed (see strategyaddstwoindicators.png). Any clues about what I am doing wrong?

The code is in the attached zip file.

Thanks,
Jason

[NinjaTrader_JoshP]

I suggest you first start by trying to debug via this tip: http://www.ninjatrader-support.com/v...ead.php?t=3418

[hoozifachi]

The WoodiesCCI indicator used within my indicator (CCIZLR) does not seem to be working correctly when CCIZLR is added to my strategy.

When I add the indicator to a chart, the debug messages display the WoodiesCCI values as expected:

CCIZLR::OnBarUpdate - ENTER: Time: 4/21/2008 9:00:00 PM Open: 1.5912 Close: 1.5902
CCIZLR::isZlrEntry - ENTER: Long
CCIZLR::isTrending - ENTER: Long
CCIZLR::isTrending - ZoneBars[0] = 2
CCIZLR::isTrending - Sidewinder[0] = 0
CCIZLR::isTrending - woodiesCCI[0] = -56.6978193146519

But when I add my strategy to the chart, which in turn adds the CCIZLR indicator to the chart, the debug messages show different values:

CCIZLR::OnBarUpdate - ENTER: Time: 4/21/2008 9:00:00 PM Open: 1.5912 Close: 1.5902
CCIZLR::isZlrEntry - ENTER: Long
CCIZLR::isTrending - ENTER: Long
CCIZLR::isTrending - ZoneBars[0] = 0
CCIZLR::isTrending - Sidewinder[0] = 0
CCIZLR::isTrending - woodiesCCI[0] = 1.5812

Shortly after this the debug messages stop and the following message is written to the log:

Error on calling the 'OnBarUpdate' method for indicator 'CCIZLR' on bar 1: Index was out of range. Must be non-negative and less than the size of the collection.

I assume this is an exception thrown by WoodiesCCI when I try to access WoodiesCCI.SideWinder[0].

Am I doing something here that is not supposed to work? I double-checked and I am passing the same values to CCIZLR's properties in both cases.

[NinjaTrader_Dierk]

>> Error on calling the 'OnBarUpdate' method for indicator 'CCIZLR' on bar 1: Index was out of range. Must be non-negative and less than the size of the collection
This might help: http://www.ninjatrader-support.com/v...ead.php?t=3170

[hoozifachi]

Thank you all for your help.

I have discovered a change that makes it work, but I don't understand what my original code was doing wrong.

CCIZLR contains a private member that holds a reference to the WoodiesCCI indicator. My original code initialized the reference in the Initialize method. When I added this indicator to a chart manually, it worked just fine. However, when I added it to a chart programatically from my strategy, it returned unusual values and received the errors mentioned before.

I moved the initialization of the WoodiesCCI reference to OnBarUpdate (just after the CuurentBar check) and now the indicator works correctly whether I add it to a chart manually or programatically.

Can anyone explain why this works differently?

Thanks,
Jason

[NinjaTrader_Dierk]

Sorry I don't know.