How Can I get a family parameter?

[YagoFrankley]

Hello there, I create a family (a simple block) and I put a parameter called "length". Now I would like to find this parameter in revit lookup to use it in my c# plugin, but I can't find it. 

[YagoFrankley · Accepted solution]

Resolved, I just needed to switch type parameter to instance parameter in family. So the parameter appears in "parameter" into Revit lookup