NinjaScript Editor - Custom Dropdown Lists?

[MarkWise]

Hello!

I'm new to NinjaTrader (as a recent convert from FXCM due to the debacle.)

I've started migrating a lot of my indicators (currently written in Lua) and many of them have a dropdown list so the user can select from multiple options, where a Boolean choice isn't sufficient.

For example, suppose I want to give the user 3 options for performing a calculation based on a bar's size: High-Low, Open-Close, High-Close.

Is there a way I can create a dropdown list with these parameters? Maybe an enumeration of types? Or is the only alternative to use a string input field where the user specifies code values?

Thanks in advance for your help!

[NinjaTrader_JessicaP]

Hello MarkWise, and thank you for your question.

C# does indeed have an enum type, and these can be exposed as properties. If you would like to map simple types to values meaningful to the program, a C# dictionary can help with this as well. The attached code sample should help get you started. Please let us know if there are any other ways we can help.

[MarkWise]

That's exactly what I was looking for!

I*didn't know*if that was supported.

Thanks so much!

[MarkWise]

I'm running into namespacing issues now... The auto-generated NinjaScript code doesn't include the proper namespacing for any enumerations included in the main indicator.

This occurs within the MarketAnalyzerColumn section and the Strategy section.

Basically the enumerations get included as "Indicators.MyIndicator.MyEnumType" but they should be included as "Indicators.Indicators.MyIndicator.MyEnumType" .

This also occurs in the DaysOfWeekEnumExample.cs file provided.

Am I doing something wrong?

[MarkWise]

Namespacing Issues with Enum Parameters

Here is a sample indicator demonstrating the issue. If you manually add the namespacing references, as soon as you compile, the auto-generated code removes those references.

Thoughts?

[MarkWise]

I was able to get this to work finally. I had to put the enum declaration(s) into a new namespace OUTSIDE of the main namespace area, but below the Indicator class definition.

Note that the NinjaTrader compiler does NOT like multiple sub namespacing. That is, NamespaceParent.Child is okay, but NamespaceParent.Child.AnotherChild is not okay.

[zoharcho]

thanks for this dropdown list code