I have 2 classes and declare as below:

public class One {   public string Id { get; set; } }
public class Two : One {   public string Name { get; set; } }

var s1 = new List<One>() { new One() {Id = '1'}, new One() {Id = '2'}};
var s2 : List<Two>();

How to assign s1 to s2 in net core so that s2 will have Id value?