How to Sort a List in C# - Step by Step Examples

How to Sort a List in C# ?

Answer

To sort a List in C#, you can use the Sort() method. For sorting in ascending order, you simply call the Sort() method on the list object. For sorting in descending order, you can use the Sort() method with a comparison delegate.

✐ Examples

1 Sort a List in Ascending Order

In this example,

We include the necessary namespace System.Collections.Generic.
We create a List named numbers and initialize it with integer values.
We call the Sort() method on the numbers list to sort it in ascending order.
The Sort() method sorts the elements in natural order.
Finally, we use a foreach loop to print the sorted list to the console.

C# Program

using System;
using System.Collections.Generic;

class Program {
    static void Main() {
        List<int> numbers = new List<int> { 5, 2, 8, 1, 3 };
        numbers.Sort();
        Console.WriteLine("Sorted list in ascending order: ");
        foreach (int n in numbers) {
            Console.Write(n + " ");
        }
        Console.WriteLine();
    }
}

Output

Sorted list in ascending order: 1 2 3 5 8

2 Sort a List in Descending Order

In this example,

We include the necessary namespace System.Collections.Generic.
We create a List named numbers and initialize it with integer values.
We call the Sort() method on the numbers list with a comparison delegate to sort it in descending order.
The Sort() method with the comparison delegate sorts the elements in reverse natural order.
Finally, we use a foreach loop to print the sorted list to the console.

C# Program

using System;
using System.Collections.Generic;

class Program {
    static void Main() {
        List<int> numbers = new List<int> { 5, 2, 8, 1, 3 };
        numbers.Sort((a, b) => b.CompareTo(a));
        Console.WriteLine("Sorted list in descending order: ");
        foreach (int n in numbers) {
            Console.Write(n + " ");
        }
        Console.WriteLine();
    }
}

Output

Sorted list in descending order: 8 5 3 2 1

Summary

In this tutorial, we learned How to Sort a List in C# language with well detailed examples.

◀ Previous Next ▶

C# Tutorials

C# How-Tos

How to Sort a List in C# - Step by Step Examples

How to Sort a List in C# ?

Answer

✐ Examples

1 Sort a List in Ascending Order

C# Program

Output

2 Sort a List in Descending Order

C# Program

Output

Summary

More C# Lists Tutorials