Part 16 - C# Tutorial - Call By Value

In C#, value-type parameters are that pass a copy of original value to the function rather than reference. It does not modify the original value. A change made in passed value does not alter the actual value. In the following example, we have pass value during function call.

C# Call By Value Example

1. using System;  
2. namespace CallByValue  
3. {  
4.     class Program  
5.     {  
6.         // User defined function  
7.         public void Show(int val)  
8.         {  
9.              val *= val; // Manipulating value  
10.             Console.WriteLine("Value inside the show function "+val);  
11.             // No return statement  
12.         }  
13.         // Main function, execution entry point of the program  
14.         static void Main(string[] args)  
15.         {  
16.             int val = 50;  
17.             Program program = new Program(); // Creating Object  
18.             Console.WriteLine("Value before calling the function "+val);  
19.             program.Show(val); // Calling Function by passing value            
20.             Console.WriteLine("Value after calling the function " + val);  
21.         }  
22.     }  
23. }  

Output:

Value before calling the function 50
Value inside the show function 2500
Value after calling the function 50