I tried the following piece of code

public abstract class Entry3
{
    public abstract void Method1();
    public virtual void Method2() { Console.WriteLine("Entry3.Method2"); }
}

public abstract class Entry31 : Entry3
{
    public override void Method1()
    {
        Console.WriteLine("Entry31.Method1");
    }
    public virtual void Method2() { Console.WriteLine("Entry31.Method2"); }
}

public class Entry32 : Entry31
{
    public override void Method1()
    {
        Console.WriteLine("hi");
    }
    public override void Method2() { Console.WriteLine("Entry32.Method2"); }
}

public class Main4
{
    public static void Main()
    {
        Entry32 e32 = new Entry32();
        e32.Method1();

        //((Entry31)e32).Method1();
        ((Entry3)e32).Method1();

        e32.Method2();
        ((Entry31)e32).Method2();
        ((Entry3)e32).Method2();

        Console.ReadKey();
    }
}

The response was “Entry3.Method2” for the last line ((Entry3)e32).Method2();. I have overridden the base Entry31 Method2 in Entry32. Is C# finding that the Entry3 Method2 not being overridden in Entry32 and calling Entry3.Method2. Can anyone help me understand this behavior