using System;

public class Program

{

    public static void Main()

    {

        var sub = new SubClass();

        sub.Page_Load();

    }

}

​

/////////////////// Interesting stuff below ///////////////////

​

public class SuperClass {

    public SuperClass() {}

    protected void Page_Load() { // how to avoid duplicate code AND call Subclass's PrintMsg()?

        PrintMsg();

    }

    private void PrintMsg() {

        Console.WriteLine("SuperClass");

    }

}

​

public class SubClass : SuperClass {

    public SubClass() : base() {}

    public new void Page_Load() { // how to avoid duplicate code AND call Subclass's PrintMsg()?

        base.Page_Load();

        // PrintMsg();

    }

    private void PrintMsg() {

        Console.WriteLine("SubClass");

    }

}