Set parameter value in family editor

Hi everyone
I have family of structural foundation with some parameters that I’ve added. Inside Revit family editor, I would like to use dynamo to fill one of this parameter. I’ve insert some nodes to calculate the value of the parameter. However I’m not able to fill the family parameter “Lunghezza tirafondi” with the value that I’ve calculated. Can anyone help me?
Thank you

Mau

Hi Mau

What does the error on the Parameter.SetValue nodesay?
And are you using a node from Orchid to write the parameter?
If so, have you tried the OOTB node?

Hi @Mau. Can you show us what is written in the error mark?

Hi @ guess that node need a parameter and not the parameter name

PS …guess you are more after something here

@sovitek is right!

Thank you for your support.
i’ve understood the problem. I have to give as input a parameter and not a simple string.