Accessing chart name via NT scipt

[funk101]

This must be simple, but can't find, a method for return the name of the chart that a strategy is being run on?

[NinjaTrader_Ray]

imported post

Charts do not have names. Do you mean the instrument?

Ray

[funk101]

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Yes, sorry. Any way to identify the chart/instrument when outputting to output window

[NinjaTrader_Ray]

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Please see this post - http://ninjatrader.mywowbb.com/forum20/1554.html

It will provide you with the answer you seek.

Ray

[funk101]

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Yes, that's it. So, where do *I* find these types of things out? It's not in the online help. I hate to keep asking these lame questions.

[NinjaTrader_Ray]

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This was not documented yet. It is in my current working DOC that will be published with the next update. The complete DOC will be done by production release around the second week of April.

Ray

[funk101]

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Cool, thanks...I don't feel like a "lame-o" now

[funk101]

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Can you explain why this code doesn't execute?



This is set -> Initialize();

instrumentName = Instrument.FullName;

----

This is run -> OnBarUpdate();

if (Position.MarketPosition != MarketPosition.Flat){

Print (instrumentName+" PnL "+Position.GetProfitLoss(Close[0], PerformanceUnit.Points));

if (Position.GetProfitLoss(Close[0],PerformanceUnit.Points) >= 9){

Print (instrumentName+" trail stop set to 6");

SetTrailStop(CalculationMode.Ticks, 6);

}

}

[NinjaTrader_Ray]

imported post

Check the log tab, I suspect you get a null reference exception in which case NT stops processing the strategy. Instrument may not yet be set in Initialize().

Alternatively, you can just access in OnBarUpdate()

Instrument.FullName

or

if (instrumentName.Length == 0)
instrumentName = Instrument.FullName;


Ray

[funk101]

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No, intrumentName is set, I can see in output window. The strategy runs.

Just trying to reset TrailStop if profit is >= 9 PerformanceUnit.Points...hmm

[ThePatientOne]

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I am attempting to use Instrument.FullName inside of the OnBarUpdate method of a custom indicator but am receiving a compile time error stating:'

An object reference is required for the nonstatic field, method, or property ...

I was assuming that this object was part of the core NinjaTrader dll. Is this so? Is there something I am missing regarding syntax? My exact code line is:

symbolName = Instrument.FullName;

[funk101]

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I'm assuming you need to initialize in "#region Variables"

privatestring symbolName = "";

[ThePatientOne]

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Already thought of that one. I only need the variable in the OnBarUpdate so I initially declared it as local to that method. Then, after getting the error, I put it in the classes global variable declaration and initialized it to no success.

Thanks for the response though.

[NinjaTrader_Ray]

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Please use

symbolName = Bars.Instrument.FullName;

for now.

Ray

[NinjaTrader_Ray]

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The current documentation is not reflective of actual usage. The next release will allow you to accesss "Instrument" within an indicator without having to go through the "Bars" object.

Ray