How do you dynamically Add TF based your periods based on your GUI Timeframe

[DaFish]

I know you can't do this code below in the Initialize() area.

How can I do a similar thing to do the same function?

If in the GUI, I select 30 min chart, I want to add 30 min, 15 min and 10 min data streams.

If in the GUI, I select 15 min chart, I want to add 15 min, 10 min and 5 min data streams.


#region Initialize
///<summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
///</summary>
protectedoverridevoid Initialize()
{
EntryHandling = EntryHandling.UniqueEntries;
AllowRemovalOfDrawObjects = true; // Draw objects can be removed separately from the script

// add the data series to calc on
// Add(PeriodType.Minute, intraPeriodInMinutes);
if (BarsPeriods[0].Id == "Day" && BarsPeriods[0].Value == "1")
{
Add(PeriodType.Day, 1);
Add(PeriodType.Minute, 30);
Add(PeriodType.Minute, 15);
}
// else if (BarsPeriods[0].Id == "Minute" && BarsPeriods[0].Value == "30")
// {
// Add(PeriodType.Minute, 30);
// Add(PeriodType.Minute, 15);
// Add(PeriodType.Minute, 5);
// }
// else if (BarsPeriods[0].Id == "Minute" && BarsPeriods[0].Value == "15")
// {
// Add(PeriodType.Minute, 15);
// Add(PeriodType.Minute, 10);
// Add(PeriodType.Minute, 5);
// }
// else if (BarsPeriods[0].Id == "Minute" && BarsPeriods[0].Value == "10")
// {
// Add(PeriodType.Minute, 10);
// Add(PeriodType.Minute, 5);
// Add(PeriodType.Minute, 2);
// }

// Calculate on the close of each bar = false - we will be using intraday data
CalculateOnBarClose = false;
}
#endregion

[NinjaTrader_Bertrand]

Hi DaFish, unfortunately we cannot support dynamic series adding for scripts - what I would suggest doing is creating user defined inputs, so you can then use creating the Add() statements needed.

[DaFish]

Hi Bertrand, thanks a lot. I figured that was my only option...

There is no way to override what the GUI is selected is there?

For example, if I have the following parameters to add the following TFs
ShortTF - 15 min
MediumTF - 30 min
LongTF - Day

and I want to override the GUI to only display 15 min chart so BarsInProgress == 0 is 15 min chart

Please advise

[NinjaTrader_Bertrand]

You're welcome, if I follow you correctly, you would list adjust the primary bars that's the GUI chart would visualize?

[DaFish]

You're welcome, if I follow you correctly, you would list adjust the primary bars that's the GUI chart would visualize?

Yes, if my parameters on the ShortTF show 15 min as the primary, I don't want the user (me) to go and forget that if I select another TF, my chart won't work.

Not a big deal if there is no way. I guess I would know when my system displays nothing. It just won't be intuitive for the user.

[NinjaTrader_Bertrand]

Thanks, yes correcting this primary would unfortunately not be possible with supported methods - yes you could detect this and put a DrawTextFixed on the chart to inform you changing of the series would be needed.

An alternative, more advanced hint would be using C# SendKeys to 'type' via code on your chart to change the interval - imitating the regular feature that we have for non programmatic use.

http://msdn.microsoft.com/de-de/library/system.windows.forms.sendkeys.sendwait.aspx