By 22/07/2015 1 Comments

Properties In C#

  • In C# class has another type of members called properties or regular properties.
  • A property is used to access a private field / instance variable outside from a class.
  • A property can be used as an expression as well as can be assign to variables like a normal variable / field.
  • As compare with methods a property is more secure, better approach and powerful for access to private fields, because we have more controls over on fields using a property.
  • A property has two keywords [get] and [set] which are called accessors where the [set] accessor initializes a private field and [get] accessor returns that private field through a property.
  • Implementation of the properties make object oriented programing more professional.
  • Like other members of the class properties can be static or no-static.

General Syntax:

access-modifier type PropertyName
   get { // code for get accessor }

  set { // code for set accessor }

access-modifier It should be public (Recommended).
type It defines a type of a property such as an int, a class, string, structures, enumeration etc.
PropertyName This is a name of a property, should be any meaningful name.
{ Starting scope or body of a property.
get { // code for get accessor } This is a get accessor which contains keyword return which returns the value of a private field through that property.
set {// code for set accessor } This is a set accessor which has a keyword value which receives a value automatically and assigns or initializes a value to a private filed or property. The value keyword works as a parameter.
} Closing scope or body of a property.


using System;
namespace csharpBasic
    class MarkSheet
        // Fields declaration with private access.
        private double AspMarks;
        private double JavascriptMarks;
        private static double TotalMarks;

        // A static property declaration of double type which initializes TotalMarks and returns.
        public static double GetTotalMarks
        { // property starting scope.

            { // get accessor which returns TotalMarks fields.
                return TotalMarks;

            { // set accessor which assigns value to TotalMarks field through "value" parameter.
                TotalMarks = value;

        } // End of property.

        // Parametrized constructor declaration.
        public MarkSheet(double aspMarks, double javascriptMarks)
            AspMarks = aspMarks;
            JavascriptMarks = javascriptMarks;

        // Return type method returns obtain marks.
        public double GetObtainMarks()
            return AspMarks + JavascriptMarks;

        // Return type method returns percentage of obtain marks.
        public double GetPercentage(double obtainMarks, double totalMarks)
            return (obtainMarks / totalMarks) * 100.0;

    class Program
        static void Main(string[] args)
            // Marksheet object is being created.
            MarkSheet markSheet = new MarkSheet(80, 70);

            // Statement gets obtain marks by calling GetObtainMarks() method.
            double obtainMarks = markSheet.GetObtainMarks();

            // Statement is accessing property GetTotalMarks and assigns 200 value to it.
            double totalMarks = MarkSheet.GetTotalMarks = 200;

            Console.WriteLine("Total Marks {0}", totalMarks);
            Console.WriteLine("Obtain marks: {0}", obtainMarks);
            Console.WriteLine("Pecentage: {0}", markSheet.GetPercentage(obtainMarks, totalMarks));
    /*  The Output will be:
        Total Marks 200
        Obtain marks: 150
        Pecentage: 75


  • A property does not define any storage location for fields by itself OR a property does not store a field by itself, it simply manages the access of private fields or instance variables. It is just a way for class fields/instance variables access management.
  • By the use of a property you have full control on fields/instance variables.
  • A class either has a read only property or write only and also can be both read-write property. If you want to make a read only property simply use a get accessor or want to write only property use only set accessor or use both get and set accessor for read-write property.

Posted in: C# Advance, C#.NET

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