Private Modifier in C sharp

 Private access is the least permissive access level.

 Private members are accessible only within the body of the class or the struct in which they are declared.

 Uses AND Accessibility

         1.      Cannot be accessed by object

         2.      Cannot be accessed by derived classes

Example: In the following example Display  and FirstName is not accessible outside the class.

using System;

namespace Modifier

{

    class PrivateModifier

    {

        //private memebers of class,we can access within class

        private string FirstName { get; set; }

        public string LastName { get; set; }

        private void Display()

        {

            Console.WriteLine("Public method is accessible outside class");

        }

    }

    public class Program

    {

        public static void Main()

        {

            PrivateModifier obj = new PrivateModifier();

            //Giving error when we try to access private member out of type

            //error: inaccessible due to protection level

            obj.Display();

            //error: inaccessible due to protection level

            obj.FirstName = "abc";

            Console.ReadLine();

        }

    }

}

The above program will give compilation error (inaccessible due to protection level), as access to private is not permissible.