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What is Keyword “this” in C#

Keywords are the identifiers whose functionality is already defined in the compiler of a particular language. These are used to perform specific predefined actions according to the syntax rule of the language. C# also has keywords, such as the “this” keyword. In C#, the “this” keyword allows interacting with the class and accessing each member of the current instance.

This article will provide detailed information about the “this” keyword in C# with an example.

What is this Keyword in C#?

In the C# programming language, the “this” keyword is a pointer to the reference of a class itself. It helps to access the members of the current object, such as the constructor, and methods. The word “this” is frequently used to differentiate among instance members with an identical name and local variables or arguments. It improves readability and comprehension of the code.

Example: How to Refer to the Present Element of Class Using “this” Keyword?
To refer the present member of a class in C# using the “this” keyword, first, use the “using System” to recognize code elements and make globally unique types. It is used to acquire the System namespace, allowing users access to the.NET framework’s functionalities:

using System;

Next, utilize the “this” keyword within the “my_Class” method to refer to the current instance. Then, declare the “SetTotalValue()” function that takes only one argument and assigns the integer type value as a parameter to the “amount” field of the current instance by using the “this.amount”. As in parallel, the “GetTotalValue()” method is specified to return the value of the “amount” using return “this. amount”:

class my_Class
    private int amount;
    public void SetTotalValue(int value)
        this.amount = value;
    public int GetTotalValue()
        return this.amount;

After that, the “Program” is defined and the static void “Main()” method is used inside the class. Then, the object of the “my_Class” is called with the “SetTotalValue()” method that takes the integer value “40” as an argument. Lastly, call the “Console.WriterLine()” to display the total value on the terminal:

class Program
    static void Main()
        my_Class my_Object = new my_Class();
        int total_Value = my_Object.GetTotalValue();
        Console.WriteLine("Total value is: " + total_Value);

As you can see, the resultant value of the above-executed code is shown in the provided output:

Note: The “this” keyword in C# improves code readability, permits method chaining, and extensions of existing classes.

That’s it! We have illustrated the usage of the “this” keyword in C#.


In C++, Keyword “this” is extensively used as a pointer referring to an active member of a class. It provides a reference to its member parameters and member functions. When separating among local variables and members of a class. In this tutorial, we have demonstrated the detail of the “this” keyword in C#.

About the author

Kaynat Asif

My passion to research new technologies has brought me here to write for the LinuxHint. My major focus is to write in C, C++, and other Computer Science related fields. My aim is to share my knowledge with other people.