I am having a problem with a certain logic on the lists.
What I want to do is to filter pipe systems and change the builtin parameter of the filtered elements. when I plug the filtered elements I am getting “Parameter not Found Error”.
My question is how can I retrieve the element ids of the elements whose condition is true?
I am uploading a tidiep up version of the graph.
ThanksChange Piping system and material for Dynamo BIM Help.dyn (15.7 KB)