How to search an item in a C# List

Introduction

C# List<T> class provides methods and properties to create a list of objects (classes). You can add items to a list during the initialization or using List.Add() and List.AddRange() methods.

The list is a generic class. You must import the following namespace before using the List<T> class.

using System.Collections.Generic;

How to Search an Item in a List?

The BinarySearch method uses the binary search algorithm to find an item in the sorted List.

The following code snippet finds an item in a List.

// Create a list of strings
List<string> AuthorList = new List<string>();
AuthorList.Add("Mahesh Chand");
AuthorList.Add("Praveen Kumar");
AuthorList.Add("Raj Kumar");
AuthorList.Add("Nipun Tomar");
AuthorList.Add("Dinesh Beniwal");
AuthorList.Sort();
int itemPosition = AuthorList.BinarySearch("Raj Kumar");
Console.WriteLine("Item found at position: {0}", itemPosition + 1);

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