What are Loop constructs?

Loop structures are used to execute one or more lines of code repetitively. Loops are used for iteration purposes, i.e., doing a task multiple times (usually until a termination condition is met).

The following loop constructs are supported by C#:

• The while loop
• The do…while loop
• The for loop

What is while loop?

The while loop construct is used to execute a block of statements for a definite number of times, depending on a condition. The while statement always checks the condition before executing the statements within the loop. When the execution reaches the last statement in the while loop, the control is passed back to the beginning of the loop. If the condition still holds true, the statements within the loop are executed again. The execution of the statements within the loop continues until the condition evaluates to false.

The syntax of the while loop

Sequence of execution steps of the while loop

The sequence of execution of a complete for while construct is shown in the following

 Example of while loop 

Now I am going to explain about example of while loop

While loop example in c# 4.5 tutorial step by step in visual studio 2012

Now I am going to explain you how to use while loop statement in c# with Visual Studio 2012. After installation visual studio 2012 you will follow these steps. If you till do not install visual studio 2012 please follow in this link Microsoft visual studio 2012 professional download step by step and installation tutorial. Now follow all steps.

To create a C# program, you will follow these steps.

1. Click on window logo or start Menu in your operating system
2. Click on All Programs
3. Click on Microsoft Visual Studio 2012 menu-bar
4. Click on Microsoft Visual Studio 2012 RC
5. Open Microsoft Visual Studio Now Click on File Menu ? New ?  Project.
6. Select Visual C# 
7. select Console Application.
8. type a name Text-Box
9. Click ok.
10. Now you copy and paste the C# Code in visual studio 2010 or 2012 and press F5 or Start Debugging 

Source code

/*http://downloadfreetutorial.com
 * Ranjan Kumar Bera & Khushbu Tyagi
 * I hope you enjoy the tutorial  
 * don't forget to give comment and like facebook, google plus etc..
 * */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace while_loop_downloadfreetutorial.com
{
    class WhileLoop
    {
        static void Main(string[] args)
        {
            int var;
            var = 100;
 
            while (var < 200)
            {
                Console.WriteLine("Value of variable is; {0}", var);
 
                var = var + 10;
 
                Console.ReadLine();
            }
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

static void Main(string[] args)

{

int var;

var = 100;