---
title: "Parellel.ForEach Loop"
description: "In this blog I will show you a small demonstration of Parellel.ForEach loop. You can take advantage of multi-core processors and execute foreach loops"
author: "Anonymous User"
published: 2012-04-22
updated: 2014-09-18
canonical: https://www.mindstick.com/blog/298/parellel-foreach-loop
category: "c#"
tags: ["c#"]
reading_time: 2 minutes
---
# Parellel.ForEach Loop
In this blog I will show you a small demonstration of Parellel.[ForEach loop](https://www.mindstick.com/forum/182/problem-in-getting-the-value-from-array-by-using-foreach-loop). You can take advantage of multi-core [processors](https://answers.mindstick.com/qa/96913/name-of-the-latest-computer-processors-cpu) and execute foreach loops in parallel. This works especially well when getting [multiple](https://www.mindstick.com/blog/12797/iowa-is-expected-to-see-heavy-growth-in-multiple-sectors) chunks of data from [external](https://www.mindstick.com/articles/12810/how-to-connect-tablet-to-external-monitor-or-flat-screen-tv-using-computer-adapters) data [sources](https://www.mindstick.com/articles/44491/how-to-evaluate-credibility-of-internet-sources) such as a [database](https://www.mindstick.com/articles/12226/use-of-database-in-sencha-extjs-and-insert-record-from-user-form-using-ajax), [web service](https://www.mindstick.com/articles/895/web-service-introduction), or [RESTful API](https://www.mindstick.com/articles/335974/retrieve-data-from-restful-api-and-add-paging-in-knockout-js).
Following example will show you [implementation](https://www.mindstick.com/forum/33764/how-to-implementation-of-class-in-c-sharp) of Parellel.ForEach loop.
```
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading;using System.Threading.Tasks;namespace ConsoleApplication1{ /// /// A user defined datatype to store information of /// student such as Name and ID. /// public class Student { public int ID { get; set; } public string Name { get; set; } } class Program { static void Main(string[] args) { List StudentRecords = GetStudentRecords(); //Here we will display all records of student whose name start with A //Using Parellel.ForEach loop. Parallel.ForEach(StudentRecords, TempStudent => { if (TempStudent.Name.StartsWith("A")) { Console.WriteLine("Student ID : {0} , Name : {1}", TempStudent.ID, TempStudent.Name); } }); } /// /// Returns a junk records of collection of /// Student to perform operation. /// /// private static List GetStudentRecords() { List StudentList = new List(); StudentList.Add(new Student { ID = 1, Name = "Awadhendra" }); StudentList.Add(new Student { ID = 2, Name = "Anuj" }); StudentList.Add(new Student { ID = 3, Name = "Ravi" }); StudentList.Add(new Student { ID = 4, Name = "Ashish" }); StudentList.Add(new Student { ID = 5, Name = "Atul" }); StudentList.Add(new Student { ID = 6, Name = "Shikha" }); StudentList.Add(new Student { ID = 7, Name = "Pooja" }); StudentList.Add(new Student { ID = 8, Name = "Amit" }); StudentList.Add(new Student { ID = 9, Name = "Nidhi" }); StudentList.Add(new Student { ID = 10, Name = "Neha" }); return StudentList; } }}
```
##### Output of following code snippet is as follows.
[Student](https://www.mindstick.com/articles/157138/student-loan-default-wage-garnishment-and-student-loan) ID : 8 , Name : Amit
Student ID : 4 , Name : Ashish
Student ID : 5 , Name : Atul
Student ID : 1 , Name : Awadhendra
Student ID : 2 , Name : Anuj
Press any key to continue . . .
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---
Original Source: https://www.mindstick.com/blog/298/parellel-foreach-loop
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