Parameters - drop down selection?

[rtrader]

Can an indicator/strategyparameter have a drop down selection box applied to it? eg for True/False or multiple values.

If so could someone post a code snippet? If not could it be added to the suggestions list?

Thanks.

[NinjaTrader_Ray]

Yes this is possible.

Please look at the PriorDayOHLC indicator source. Take a look at the following:

Under variables:

showOpen

Under properties:

ShowOpen

Ray

[rtrader]

Thanks Ray.

I see it is possiblewith bool True/False. Can one specify multiple values - eg multiple strings or numbers?

eg "PlotBasedOn"

"Close" or

"(H+L) / 2" or

"(O+H+L+C) / 4"

[NinjaTrader_Ray]

Yes but I do not have code samples to provide you.

If you want to choose between plots in Initialize() set:

PriceTypeSupported = true;

This will allow you to select in the indicator dialog when adding to a chart, either OHLC, Median or Typical price types, like the Simple Moving Average indicator.

Then in your indicator code, where you want to reference the actual plot, use:

Input[0] as opposed to Open[0] or Close[0].
"Input" will always reference the price type you selected.

See the SMA indicator source for an example.

Ray

[whitmark]

I think the question has more to do with defining an enumerated list or type (or similar concept) and making itavailable in a parameter pulldown list to suggest predfined inputs.For example:

Exponential, Simple, Hull

7, 14, 21

1.0, 1.5, 2.5

1- Conservative, 2-Moderate, 3-Aggressive

I see there are preexisting Color and PriceTypes available but what about the ability to define other customized lists. An example set of code for this simplistic type of input would be helpful.

Regards,

Whitmark