How to access the value of Days to Load in State.Configure

[davydhnz]

I want to do something like this:

else if (State == State.Configure)
{
if (Bars.BarsData.DaysBack < 10)
AddDataSeries(null, new BarsPeriod { BarsPeriodType = BarsPeriodType.Minute, Value = 1440 }, 10, null, false);
else
AddDataSeries(BarsPeriodType.Minute, 1440);
}

The purpose is this. If I load 1 day on a 5 minute chart, I want it to load extra daily bars for my daily indicator to work,
however, if I load 60 days on the 5 minute chart, then I want to follow the number of days from the 5m chart,
so I need to get the value of the Days to Load in order to know which AddDataSeries to add.

Thanks in advance!

[NinjaTrader_BrandonH]

Hello davydhnz,

Thanks for your post.

ChartBars.Properties.DaysBack would return an int representing the Chart's Data Series configured "Days to load" when the RangeType.Days is selected.

ChartBars: https://ninjatrader.com/support/help.../chartbars.htm
ChartBars.Properties: https://ninjatrader.com/support/help...properties.htm

I see you are dynamically adding a data series with the AddDataSeries() method in the code you shared which is not supported.

AddDataSeries() arguments should be hardcoded and should not be placed within a condition.

From the AddDataSeries() help guide documentation:

"Arguments supplied to AddDataSeries() should be hardcoded and NOT dependent on run-time variables which cannot be reliably obtained during State.Configure (e.g., Instrument, Bars, or user input). Attempting to add a data series dynamically is NOT guaranteed and therefore should be avoided. Trying to load bars dynamically may result in an error similar to: Unable to load bars series. Your NinjaScript may be trying to use an additional data series dynamically in an unsupported manner."

If you are using the same data series as the primary. You will need to load the number of days for the chart if you use a daily series on the chart. This is expected due to the note on the AddDataSeries page:

"When adding multiple Data Series of the same instrument and the same Bar Type, the 'barsToLoad' property will only be effective on the first added series. Subsequent series with a different barsToLoad setting will not load a different number of bars then the first series."

AddDataSeries(): https://ninjatrader.com/support/help...dataseries.htm

You could see an example of loading more daily bars than the primary series on this forum thread: https://forum.ninjatrader.com/forum/...06#post1150106

[davydhnz]

Thanks for the response NinjaTrader_BrandonH.

The thing about daily bars is they don't provide the same open and close price as 1440 minute bars.

If only there was a day to limit the amount of days the chart displays for the primary series while loading more days than the chart displays.

I found your reply helpful though for planning next steps.

All the best,

Davydh