You need to do
var result = lista.Where(foo => foo.idinvoice == 1 &&
listaIDprod.Contains(foo.idprod)).ToList();
Please look into your code, before putting on SO. class objeto()
should be class objeto
.
Also, please choose sensible names for your classes and objects.
2
solved (C# Linq) Get items from a list when your ID is on another list [closed]