How to iterate over all user-created "this.Parameters" in NT Strategy code.

[ChiTrader2000]

Hello,

My users are creating NinjaScript strategies, and they are creating custom parameters for their strategies that look something like this in the C# code:

privateint ticksBetter = 1;

[Description("Ticks Better is used to do such-and-such.")]
[Category("Parameters")]
publicint TicksBetter
{
get { return ticksBetter; }
set { ticksBetter = Math.Max(0, value); }
}

I am looking for a way to iterate over all user-created custom parameters so that I can write this information out to a database. Using intellisense inside of a strategy, I can't find a collection like "this.Parameters". Is there a collection that holds these parameters that I can iterate over in C# code?

Thanks in advance!

ChiTrader2000

[NinjaTrader_JoshP]

Unfortunately ChiTrader2000, this is not supported.

[Ralph]

ChiTrader2000, it's not just not supported by NT, but there is no concept in C# which provides collections for methods, variables or properties automatically. Guess you have to collect it by your own.

Regards
Ralph

[ChiTrader2000]

Hello,

Thanks for the information.

I will just write it myself using C# Reflection.

Thanks again,

ChiTrader2000

[Ralph]

Just an idea for coding. Instead of using private variables like:
private int ticksBetter = 1;
you could use the desired (and self-designed) collection as source the properties are reading from, and as target the properties are writing to. This way your collection is always up-to-date without additional coding required.

Regards
Ralph

[ChiTrader2000]

Hello Ralph,

That's a great way to do it without using System.Reflection. Problem solved!

Thanks again!

ChiTrader2000

[molecool]

Hi there:

Alright, I'm fairly new to NT and only started to code in C# but I have been coding in Java for over 12 years. Take a look at this:

http://www.developer.com/java/other/article.php/2114451

In Java it's possible to use 'introspection' to dynamically retrieve a class' parameters and then loop through them. The article covers both Java and C#.

Good luck!

Michael

[BaKlava]

Can you tell us what function is called to get the Parameter name string that is displayed in the chart, or in the Parametesr column of the strategies tab?

[BaKlava]

Never mind, me and my seemingly limitless genious has figured it out!



public string getParameterString()
{
string parameterString = "";

foreach( NinjaTrader.Strategy.Parameter parameter in this.Parameters)
{
parameterString += "( ";
parameterString += parameter.Name;
parameterString += " = " + parameter.Value;
parameterString += " ) - ";

}
return parameterString;

}

[NinjaTrader_Dierk]

Note: this is a area which is beyond what we provide support for. Please be aware that the undocumented features you're using might be gone or work differently on next NT version/release.

[BaKlava]

When's that? Approx?

[NinjaTrader_Ben]

Hello,

There is no set release date. We are hoping to get it into Beta testing within a few months.