http://pt.stackoverflow.com/questions/139880/sobrescrever-m%C3%A9todos-com-base-apenas-no-nome

CSharp · Console

/Program.cs

using System;
using System.Linq;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine(new Teste2().AnyMethod(1, 2));
		Console.WriteLine(new Teste2().AnyMethod(1, 2, 3));
		Console.WriteLine(new Teste2().AnyMethod(1, 2, 3, 4));
	}
}

public abstract class Teste 
{
	public virtual int AnyMethod(params int[] lista)
    {
        throw new NotImplementedException ( "This method is not implemented" );
    }
}

public class Teste2: Teste
{
	public override int AnyMethod(params int[] lista)
    {
        return lista.Sum(x => x);
    }
	
	public int AnyMethod(int a, int b) 
	{
		return AnyMethod(new int[] {a, b});
	}
	
	public new int AnyMethod(int a, int b, int c) 
	{
		Console.WriteLine("Exemplo do new");
		return a + b + c;
	}
}