using System;

using System.Collections.Generic;

using System.Linq;

using System.Diagnostics;

​

public class MainViewModel {

    public abstract class MyCoolViewModel : MainViewModel {

        private MyObject myCoolObject = new MyObject();

​

        public class MyOtherCoolViewModel : MyCoolViewModel {

            private MyObject myOtherCoolObject = myCoolObject;  

            public void Init() {

                myOtherCoolObject = myCoolObject;   

            }

        }

    }

}

​

public class MyObject {

}