Referencing an MTF indicator in another indicator

[zeller4]

Hello,
I'm referencing a MTF indicator which has this:

if (CurrentBar < BarsRequired || CurrentBars[0] < BarsRequired || CurrentBars[1] < BarsRequired || CurrentBars[2] < BarsRequired)

It's being called into an indicator which only has this:

if (CurrentBar <  BarsRequired)

I'm using try/catch blocks to see where it stops working.
I'm getting the effor "Object reference not set to an instance of an object" and since I've tried nearly everything else I can think of, I'm wondering if the BarsRequired is maybe not set correctly or something related to the differing sets of CurrentBars[].

[NinjaTrader_ChelseaB]

Hello zeller4,

I've made a quick example to show adding a secondary series to a target script and then calling this script should work without issue.

Please import this package and try running the MTFCallerExample script on a chart. This will print to the output window.

Are you finding any issues with this example?

[zeller4]

Thanks Chelsea,
Here's my quick files of a similar nature, showing what I'm trying to accomplish.
Not sure if there needs to be something else besides

if (CurrentBar < BarsRequired)

in the Caller code.

Anything else that stands out that could cause the problems from Post#1?

[NinjaTrader_ChelseaB]

Hello zeller4,

Is the code sample I gave you giving you errors?

Is the code sample you just posted giving you errors?

[zeller4]

No and no, I was trying to make the sample closer to the reality of what I'm trying to fix...

[NinjaTrader_ChelseaB]

Hello zeller4,

You are likely running into a logic issue.

If this file is not causing any issues, then I wouldn't imagine anything needs to be recoded.

The example is just to show that as long as you are checking that there are enough bars for as far back as you are calling then there shouldn't be an error.

If you are calling an object that doesn't exist, such as too many bars back, or trying to call an object that is null, then you are going to get an error.


My suggestion would be to reduce your code until the error stops. Then add the code back line by line until the error returns. This should let you know what line has the object that is being called that doesn't exist.

[zeller4]

Does this line in your code

Value.Set(CurrentBar);

have something to do with exposing a variable like other samples I've seen?

[NinjaTrader_ChelseaB]

Hello zeller4,

Are you referring to line 47 in the MTFCallieExample that I have provided you?

Is this line causing an error on your machine? (Currently, with this line in my code I am not getting any errors on my end)


(edit)
To clarify this line is setting a value for the default plot

This is not a custom exposed series, but I could easily make this an exposed series.