using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var sl = new StackLayout{

            Children = {

                new Label{ Text="l1" },

                new Label{ Text="l2" }

            }

        };

        foreach(var l in sl.Children){

            Console.WriteLine(l);

        }

​

    }

    public class StackLayout{

        public IList<object> Children{get;}

            = new List<object>();

    }

    public class Label{

        public string Text{get;set;}

        public override string ToString(){

            return Text;

        }

    }

}