Consultar lista con linq

            var v = new List<Dato>();
            v.Add(new Dato(1, "carlos"));
            v.Add(new Dato(2, "abc"));

            var qry = from p in v
                        where p._ci == 2
                        select p;
            if (qry.Count() > 0)
                Console.WriteLine(qry.First()._nombre);