Father מגדירה smile/run; Son יורשת ודורסת את שתיהן, מוסיפה work; GrandSon יורשת מ-Son, דורסת smile/run (לא work), מוסיפה play. כל שלוש הסעיפים בודקים הכרעת compile-time מול runtime.

public class Father {

    public Father(){
    }
    public virtual void Smile() {
        Console.WriteLine("Father is smiling");
    }
    public virtual void Run() {
        Console.WriteLine("Father is running");
    }
}

public class Son :Father {

    public Son(): base(){
    }
    public override void Smile() {
        Console.WriteLine("Son is smiling");
    }
    public override void Run() {
        Console.WriteLine("Son is running");
    }
    public virtual void Work() {
        Console.WriteLine("Son is working");
    }
}

public class GrandSon :Son {

    public GrandSon():base() {
    }
    public override void Smile() {
        Console.WriteLine("GrandSon is smiling");
    }
    public override void Run() {
        Console.WriteLine("GrandSon is running");
    }
    public void Play() {
        Console.WriteLine("GrandSon is playing");
    }
}