I am wrestling with determining best practice for setting class properties that may change based on whether the class is being run in development or deployment. An example of this is a property in the class that turns on the unwinding of a collection into an array. Useful during development so you can see what the heck is in the collection, but a waste of time in deployment when I would like the property turned off.

(Minor gripe ... why can't the debugger let us expand a collection? Otherwise LOVE the collection class!)

Currently I am actually changing the property depending on which mode I am in dev vs deploy. I would like to set this information independently of the class and read the information in, for this and several other properties.

The places that occur to me to do this are in a:
1.) ini file
2.) system parameter dbf
3.) .h file

What do others do and what are the benefits of the separate approaches?