Deleting parameters from revit family with check for it's usage

[vlad_kolesnikov1]

Hello! I would like to make a code that would allow to delete unwanted parameters (those, that are not used in dimensions/arrays/formulas). And I would like to know how does Revit check the parameter for being used in dimensions and arrays:

[MarryTookMyCoffe · Accepted solution]

you may need to find every parameter that is read only and check if

GetAssociatedFamilyParameter

give you null, On this point I don't see better way to find this out.

I'm not sure if method

GetAssociatedGlobalParameter

work in family document
this unfortunately need some trial and error

[vlad_kolesnikov1]

@MarryTookMyCoffe Thank you for reply! I already found that parameters have this property, which I use as one of checks:

AssociatedParameters.IsEmpty

But I still have some kind of trouble, because parameters that are responsible for materials are unreachable for me. I use this simple code:

var paramList = fm.GetParameters().Where(e => e.IsShared && e.StorageType != StorageType.ElementId).ToList();

[MarryTookMyCoffe]

I thing Parameters for materials are StorageType ElementId, so ! make you lose them