Plot Method

[BradB]

I have an indicator that plots a value under each bar. After migrating to NT7 I get the following error when I scroll backwards for awhile:

"Please check the 'OnBarUpdate' or the 'Plot' method: barsAgo needed to be between 0 and 255 but was 258".

Ok, so I updated my Data Series to include:

"myDataSeries = new DataSeries(this, MaximumBarsLookBack.Infinite);"

Now my plots don't work at all...

"Please check the 'OnBarUpdate' or the 'Plot' method: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index"

I am not running this on a non-equidistant chart. Must the new plot method be used anytime you use an infinite Data Series?

Thx.

[NinjaTrader_JoshP]

BradB,

Be sure that you are actually running the indicator with Infinite bars too. You have the selection in the indicator UI when you add it. After doing that do you still get the issue?

[BradB]

Yes, it still occurs with the UI set to infinite.

[NinjaTrader_JoshP]

Please provide a stripped down as simple as possible version of your script that demonstrates the issue and we can give you some pointers accordingly. Thank you.

[BradB]

Ok, gutted sample indicator is attached. If I run it without infinite option in both code and UI, it runs fine unless I scroll backwards more than 256 bars. If I change both to Infinite, I get an error on load.

I run it on a range bar chart.

[NinjaTrader_JoshP]

BradB,

Unfortunately you are working with the unsupported Plot method. Please debug your use of ChartControl objects while keeping in mind of these code breaking changes: http://www.ninjatrader-support.com/H...il_28_2010.pdf

When you are using 256 bars back the error is in your code segment commented as "Historical Boxes" somewhere. When using Infinite the error is in your code segment commented as "First Box" somewhere.