Adding a driven rule to a parameter

[weaversystems.shop]

I am trying to set up an iLogic rule that automatically calculates the amount of 48" wall plates needed for a given trailer size. I have the rule made and the parameters set up, but I don't know how to bind the rule to the parameter as a Driven Rule and I can't find any resources online to tell me. 

In the files I attached, the left wall folder has a model with the rule already driving it. The Tapered Sidewall folder has my model with the parameters and rule in place, but no Driven Rule. If I could get some help in figuring out how to set the Driven Rule, I'd appreciate it.

[A.Acheson]

Any chance of attaching the rule and some images? Some forum users won't be able to download the files due to inventor versions or security concerns so having the concept images and the rule might help you along the way. 

[Cadkunde.nl · Accepted solution]

Rules in ilogic are automatically executed when any of the parameters in blue text change

When I want my rule to run om some parameters I do not use in the code, I start the code with something like this:

Dim startParam As Double
startParam = Length
startParam = Width
startParam = Thickness
startParam = Height

If you would make an ilogic rule with:

Length = 100

Then you go to the parameter list, and you see that the parameter "Length" column "Driving Rule" has the name of your rule 

[weaversystems.shop]

I didn't have the parameters for both iLogic variables defined before I tried to write the code, so it had nothing to reference. After I took a closer look and rewrote my parameters to include both variables, it worked perfectly. Your reply just confirmed that I had done it right. Thank you.