CalculateOnBarClose Question

[scottreynolds]

Suppose I have the following in my code:

CalculateOnBarClose = true;

but let's say the user changes this to False in the Properties window. Which setting takes precedence? The code or the user property?

[NinjaTrader_RyanM1]

Hi scottreynolds,

The selection made in the user interface will take precedence. Setting in Initialize() serves only as the initial default setting for the property.

[scottreynolds]

Is it possible to have my strategy disable the setting in the user interface to prevent the user from changing this?

[NinjaTrader_RyanM1]

There's no way to disable the setting, but you can read the property value in your code. You can basically disable any processing if it's not set as the script design requires.

if(CalculateOnBarClose)
DrawTextFixed("errorHandling", "This indicator is designed only for CalculateOnBarClose = false", TextPosition.TopRight);
			
else
{
RemoveDrawObject("errorHandling");
		
//do the rest of your strategy logic here
	
}

[koganam]

Is it possible to have my strategy disable the setting in the user interface to prevent the user from changing this?

You cannot disable it in the user interface, but COBC is a property of the indicator/strategy, so you can override it.

I usually do it on OnStartUp(), as that is more efficient; it is done once at the start. It can also be done in OnBarUpdate(), but then of course, you pay the (admittedly piddling) penalty of running that instruction on every tick. A small penalty to be sure, but I prefer to incur no penalties, unless I cannot help it. Just my coding style.