How can I hide a base class public property in the derived class

Question

I want to hide the base public property(a data member) in my derived class:

class Program
{
    static void Main(string[] args)
    {
        b obj = new b()         


        

Answer 1

You can user new modifer.

Sample;

public class Duck
{
    public string Color{get; set;}
    public void Swim() { }
}
public class DonaldDuck : Duck
{
    new public void Swim() 
    { 
        /*you could call in DonaldDuck.Swim  only here but not public for DonaldDuck client.*/ 
    }
}