I am trying to filter all curtain panel families that have the ‘beläggning’ parameter and set its value to a simple text. But it doesn’t work. First I tried to ‘Select Model Elements’ but the ‘select’ button didn’t work even if I selected geometry in Revit.
Now I selected all category and at least it draws data from Revit, but not able to continue…
hi @Kaloyan_Tomov1
What exactly do you mean by " families that have the ‘beläggning’ parameter " ?
So far you are querying the ‘beläggning’ parameter value for all your curtain panel. The absence of error means that all your curtain panels have that parameter.
Assuming your ‘beläggning’ parameter is of type text and not YES/NO, it seems like you are missing to connect the result from the node “Element.GetParameterByname” to the “a” input on your code block. With no input, the code block will return false in any case.