\'this\' reference in C#.Net with Example

Consider the program:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{

    class Sample
    {
        private int a;
        private int b;

        public Sample()
        {
            a = 0;
            b = 0;
        }

        public void setValues(int a,int b)
        {
            this.a = a;
            this.b = b;
        }
        public void printValues()
        {
            Console.WriteLine("A: " + a + " B: " + b);
        }

    }
    class Program
    {
        static void Main(string[] args)
        {
            Sample S;

            S = new Sample();

            S.setValues(10, 20);
            S.printValues();

            Console.WriteLine();

        }
    }
}

Output

A: 10 B: 20

In above program within setValues() method, this is used to differentiate between data member of class and local variable of method. Because this is a reference of current class object it can be used as data member.