if got 2 lists 1–>family.name function and 2 --> family.name material
in list 1 i have get all the walls where the funcion parameter is not 2 (foundation)
in list 2 i have get all the walls where the structural material is _beton - C30/37
in the == node i set lacing longest
how can i get the common item(s) of those list whitout knowing wich list has the most items to set the node Element.SetParameterByName.