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NinjaTrader Mystery - Indicator Changes !
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NinjaTrader Mystery - Indicator Changes !

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NinjaTrader Mystery - Indicator Changes !

I have a problem with the way the plots are initialized. Here comes a small indicator. Please apply it to a default ES chart and then just follow the instructions.

Any idea, what is wrong?

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The indicator seems to do what you're asking it to do.
What was your expected result ?

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sam028 View Post
The indicator seems to do what you're asking it to do.
What was your expected result ?


My original problem can be better understood with this indicator.

The plot is not re-initializing, when toggling from one instrument to another. I expected that the plot would reinitialize, because it is in the Initialize() section! But toggling does not initialize the plot, because you want to keep the colours and pen properties, so I was trapped.

Apply to any instrument, then toggle between instruments. Plot.Name of first instrument remains active, until you hit FDAX. Then Plot.Name will remain FDAX.

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Maybe this could be an answer to your problem

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Hi.

I have looked at the *zip and the Test.cs of your last post.

If you change your overload of OnStartup like this then the Indicator-Plots' name will be setup with the new instruments' name:

protectedoverridevoid OnStartUp()
{
Plots[0].Name = Instrument.MasterInstrument.Name ==
"FDAX"
? "Hello, I am FDAX"
: string.Format("Hello, I am [{0}]", Instrument.MasterInstrument.Name);
}



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AlexanderBecker View Post
Hi.

I have looked at the *zip and the Test.cs of your last post.

If you change your overload of OnStartup like this then the Indicator-Plots' name will be setup with the new instruments' name:

protectedoverridevoid OnStartUp()
{
Plots[0].Name = Instrument.MasterInstrument.Name ==
"FDAX"
? "Hello, I am FDAX"
: string.Format("Hello, I am [{0}]", Instrument.MasterInstrument.Name);

}



That is correct. The main idea of this thread was to show that an indicator is not reinitialized, if you toggle from one instrument to another, where as OnStartUp() is executed when toggling. Reinitializing is not possible, because you want to keep some of the properties defined, such as the colors of the plot.

So if you initialize the plots by using the name of an instrument, it will stay with the first instrument for ever. Conclusion: You should not use any reference to Instrument.MasterInstrument.Name in the Intialize() section, but do that in OnStartUp().

Your suggestion compensates the error in the Initialize() section, but to code this in a clean way, the error should not be made in the first place!

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