[Edit]

C# / .NET - remove duplicates from List using HashSet

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Created by:

Veer-Ahmad

487

In this article, we would like to show you how to remove duplicates from List using HashSet in C#.

Quick solution:

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List<string> myList = new List<string> { "A", "A", "B", "B" };
​
HashSet<string> myHashset = new HashSet<string>(myList);

Practical example

Edit

In this example, we create HashSet from the List to remove duplicates.

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using System;
using System.Collections.Generic;
​
public class Program
{
    public static void Main()
    {
        List<string> myList = new List<string> { "A", "A", "B", "B" };
​
        HashSet<string> myHashset = new HashSet<string>(myList);
​
        foreach (string item in myHashset)
            Console.WriteLine(item);
    }
}