Skip to main content

Encapsulation in C#

Encapsulation in C#

Encapsulation is a process of binding the data members and member functions into a single unit. Class is the real-time example for encapsulation because it will combine various types of data members and member functions into a single unit.

 

Generally, encapsulation is used to prevent alteration of code (data) accidentally from the outside of functions. In C#, defining a class fields with properties, we can protect the data from accidental corruption.

 

If we define class fields with properties, then the encapsulated class won’t allow us to access the fields directly instead, we need to use getter and setter functions to read or write data based on our requirements.

 

In the example below, we define an encapsulation by defining a class with properties and get and set accessors.

 

using system;

class User

{

    private string location;

    private string name;

    public string Location

    {

        get

        {

            return location;

        }

        set

        {

            location = value;

        }

 

    }

    public string Name

    {

        get

        {

            return name;

        }

        set

        {

            name = value;

        }

    }

}

 

From the code above, we defined variables with private access modifiers and exposing those variables in a public way by using properties get and set accessors. In case, if you want to make any modifications to the defined variables, then we can make it by using properties with get and set accessors.

 

Encapsulation Real-time Example in C#

Below is an example of defining an encapsulated class in C#.

 

using System;

namespace Csharpnaija

{

    class User

    {

        public string Location { get; set; }

        public string Name { get; set; }

        public string UserDetails()

        {

            return $"My name is {Name}, I live in {Location}";

        }

    }

 

    class Program

    {

        static void Main(string[] args)

        {

            User u = new User();

            // set accessor will invoke

            u.Name = "Musa Gadabs";

            // set accessor will invoke

            u.Location = "Abuja";

            // get accessor will invoke

            Console.WriteLine("Name: " + u.Name);

            // get accessor will invoke

            Console.WriteLine("Location: " + u.Location);

            //Accessing the encapsulated method

            Console.WriteLine(u.UserDetails());

            Console.WriteLine("\nPress Enter Key to Exit..");

            Console.ReadLine();

        }

    }

}

 

If we observed above code snippets, we defined a class with two properties Location and Name using auto property without the field or private variables as in the first example. We can manipulate the field values in the same way when we have private variables.

 

This is how you can use encapsulation in C# to bind data members and member functions into a single unit by protecting the data from accidental corruption.

 

References

 1.     Tutlane

2.     Geeksforgeeks

3.     Tutorial Points

 


Labels:
Location: Abuja, Nigeria

Comments

Post a Comment

Popular posts from this blog

The String.Join Method in C# Explained

The String.Join Method in C#   The string.Join concatenates the elements of a specified array or the members of a collection, using the specified separator between each element or member. Overloads of string.Join Method Description Join(Char, Object[]) Concatenates the string representations of an array of objects, using the specified separator between each member. Join(Char, String[]) Concatenates an array of strings, using the specified separator between each member. Join(String, IEnumerable<String>) Concatenates the members of a constructed IEnumerable<T> collection of type String, using the specified separator between each member. Join(String, Object[]) Concatenates the elements of an object array, using the specified separator between each element. Join(String, String[]) Concatenates all the elements of a string array, usi...
Post a Comment
Read more

Models in ASP.NET MVC

Models in ASP.NET MVC Explained A model is a class that contains the business logic of your application. It also used for accessing data from the database. The model class does not handle directly input from the browser. In MVC, it is the Controller that handle input from the browser directly and process the request by receiving data from the model and pass it back to view as response. It does not contain any HTML code either. It is a best practice but not mandatory for developers to not have any communications with the view directly, models should only contain a POCO ( Plain Old CLR Objects ) classes. All processing logic and communication with the view should be handled by another layer called Viewmodels. Models are also refers as objects that are used to implement conceptual logic for the application. A controller interacts with the model, access the data, perform the logic and pass that data to the view. Note that it is not mandatory, but it is a good programming...
Post a Comment
Read more

Classes in C# Explained

C# Class Explained A class is nothing but an encapsulation of properties and methods that are used to represent a real-time entity, as explained by Guru99 . For instance, if you want to work with Guest’s data as in our previous DataDriven Web application . The properties of the Guest would be the Id, GuestName, Address, Phone number etc of the Guest. The methods would include the entry and modification of Guest data. All of these operations can be represented as a class in C# as shown below. using System; namespace CsharpnaijaClassTutorial {     public class Guest     {         public int Id { get ; set ; }         public string GuestName { get ; set ; }         public string Address { get ; set ; }         public string WhomToSee { get ; set ; }     ...
1 comment
Read more