How to Add Items to a C# List

You can use the Add and AddRange methods of List to add an item to a list in C#. The List class provides functionality to add, remove, sort, find, and search items in the collection.

In this below code, learn how to add items to a List using C#. 

C# List<T> class represents a collection of a type in C#. List.Add(), List.AddRange(), List.Insert(), and List.InsertRange() methods are used to add and insert items to a List<T>. List<T> is a generic class.

You must import the following namespace before using the List class.

using System.Collections.Generic;

List.Add() Method

The Add method adds an item to a List. The following code snippet creates a List and adds items to it by using the Add method. 

// Create a list  
List<string> AuthorList = new List<string>();  
  
// Add items using Add method   
AuthorList.Add("Mahesh Chand");  
AuthorList.Add("Praveen Kumar");  
AuthorList.Add("Raj Kumar");  
AuthorList.Add("Nipun Tomar");  
AuthorList.Add("Dinesh Beniwal");

List.AddRange() Method

The AddRange method is used to add a collection of items. The following code snippet adds a collection of items to a List.

// Add a range of items  
string[] authors = { "Mike Gold", "Don Box",  
                        "Sundar Lal", "Neel Beniwal" };  
AuthorList.AddRange(authors);

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