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Dear Members,
When I try to modify BuiltInParameter.INSTANCE_ELEVATION_PARAM familyinstance.get_Parameter(BuiltInParameter.INSTANCE_ELEVATION_PARAM).Set(111); It raises an error that it cannot modify the read only parameters. I am trying to modify elevation value after placing the family instance.
Thanks & Regards
Hi,
What kind of family instance you are placing? Have you checked if IsReadOnly property of this Parameter is FALSE?