Insert elements at the end of a list in C#

This post will discuss how to insert elements at the end of a list in C#.

1. Using `List<T>.Add()` method

The standard solution to add a value to the end of the list is using the List<T>.Add() method. The following example demonstrates how to add a value in a List<T>.

using System;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

List<int> nums = new List<int>() { 1, 2, 3, 4 };

int x = 5;

nums.Add(x);

Console.WriteLine(String.Join(", ", nums)); // 1, 2, 3, 4, 5

}

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2. Using `Enumerable.Append()` method

Alternatively, you can use the Enumerable.Append() method to add a value at the end of a sequence. This returns a copy of the sequence with the new item, and leaves the original sequence untouched. It is available with .NET >= 4.7.1, and can be invoked as below:

using System;

using System.Linq;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

List<int> nums = new List<int>() { 1, 2, 3, 4 };

int x = 5;

nums = nums.Append(x).ToList();

Console.WriteLine(String.Join(", ", nums)); // 1, 2, 3, 4, 5

}

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3. Using `LinkedList<T>.AddLast()` method

To adds a new value at the end of the LinkedList<T>, consider using the AddLast() method. The linked list implementation provides a more complete and consistent set of LIFO and FIFO operations. Here’s an example of its usage:

using System;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

LinkedList<int> nums = new LinkedList<int>();

nums.AddLast(1);

nums.AddLast(2);

nums.AddLast(3);

Console.WriteLine(String.Join(", ", nums)); // 1, 2, 3

}

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That’s all about inserting elements at the end of a list in C#.

Insert elements at the end of a list in C#

1. Using List<T>.Add() method

2. Using Enumerable.Append() method

3. Using LinkedList<T>.AddLast() method

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1. Using `List<T>.Add()` method

2. Using `Enumerable.Append()` method

3. Using `LinkedList<T>.AddLast()` method