[Edit]

C# / .NET - combine multiple lists

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Created by:

aaliyah

471

In this article, we would like to show you how to combine multiple lists in C#.

Quick solution:

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List<string> list1 = new List<string> { "A", "B" };
List<string> list2 = new List<string> { "C", "D" };
List<string> list3 = new List<string> { "E", "F" };
​
List<string> combinedList = list1.Concat(list2).Concat(list3).ToList();

Practical example

Edit

In this example, we use Concat() method from System.Linq to combine multiple lists into one.

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using System;
using System.Linq;
using System.Collections.Generic;
​
public static class Program
{
    public static void Main(string[] args)
    {
        List<string> list1 = new List<string> { "A", "B" };
        List<string> list2 = new List<string> { "C", "D" };
        List<string> list3 = new List<string> { "E", "F" };
​
        List<string> combinedList = list1.Concat(list2).Concat(list3).ToList();
​
        foreach (string items in combinedList)
            Console.WriteLine(items);
    }
}