AssociateElementParameterToFamilyParameter conflikt with formula

[MarryTookMyCoffe]

There is a problem with Family Parameter with formula that would be associate with element parameter:
I create a formula in to family parameter and it work fine until i try to associate it witch element parameter, then i get :
Parameter "Connection Out or In" cannot be changed because it is defined by formula

but when i doing it with UI this alert never come and it work fine.
I can't just do this part always manual. 
Parameters are bool type, what some how is imported because I did similar thing for int par and it work fine.

[jeremytammik · Accepted solution]

If you wish to report a problem for this and have the development team take a look for you, they will require a reproducible case including exact steps to demonstrate all the different aspects that you mention:

http://thebuildingcoder.typepad.com/blog/about-the-author.html#1b

• It works in the UI
• It work with an int parameter
• It does not work via the API for a bool parameter

Thank you!

Cheers,

Jeremy

[MarryTookMyCoffe]

so I did a test case for it and i Find out what was reason for this :

Snippet

overwriteParameterValues = true;

I have to stop making a 10h shift hole week,I start to make a nobie mistake.

but thx for answer.

The moral of this is to:

"Always do a unit test"