Access Modifier In C#

Access Modifier

·         Public - Access in assembly as well as in reference. Default public access modifier enum, Interface

·         Private - Access within the scope of curly braces

·         Protected - Access in base and derived class

·         Internal - Access within the assembly and within the program that contains its declaration.

·         Protected Internal - Can access anywhere in the same assembly  and inherited class in another assembly.

    public class Class1

    {

        //Public - Accessable in this class, drived class, and refrence class

        public string pubString = "Public String";

        //Internal - Accessable within the assembly

        internal string intString = "Internal String";

        //Protected Internal - Accessable in Assembly and derived class

        protected internal string proIntString = "Internal String";

        //Protected - Accessable only in this class and derived class

        protected string proString = "Protected String";

        //Private - Accessable only on this class

        private string pvtString = "Private String";

        public string Method1()

        {

            //Private - Accessable within the Method1

            string pvtPhone = "Private String";

            return pvtPhone;

        }

        //Private Variable will not be accessible outside of Method1() 

    }

public class Class : Class1

    {

        public void Method1(int num1)

        {

            //Public Variable //Accessable in derived class

            Console.Write(pubString);

            //Internal Variable //Accessable in derived class

            Console.Write(intString);

            //Protected Internal Variable  //Accessable in derived class

            Console.Write(proIntString);

            //Protected variable  //Accessable in derived class

            Console.Write(proString);

            //private Variable  //Not Accessable in derived class

            Console.Write(pvtString);

            //Private Variable will not be accessible here

        }

    }

    public class Class2

    {

        //Public Variable //Accessable in derived class

        //Internal Variable //Accessable in derived class

        //Protected Internal Variable  //Accessable in derived class

        Class1 cls = new Class1() { intString = "", proIntString = "", pubString = "" };

        //Private Variable will not be accessible here

    }