Double Filter Revit model to obtain List of Elements

Hi,

I’m trying to create a Dynamo script that filters my Revit model twice in order to obtain a List of Elements, to use as input in the Element.SetParameterByName node.

The first filter is By Category, and then I intend to filter the elements within that category by the value of a parameter.

Has anyone tried doing this before?!

Hi, @claracoutoCD8EP
The script is filtering selected mechanical instances and defined value of ‘Mark’ parameter. Pay attention that it is valid only for instance parameter. What kind of parameter have you chose for filtering?

Hi, @denisyukj

It’s an instance Parameter.

Thank you so much for you help.