What is the AddRange method in C# List

Adds items of another list (or an IEnumerable collection) to the end of the list.

Using AddRange method:


listA.AddRange(listB);

listA.AddRange(listB);

AddRange example:

Firstly, set a list in C# and add elements. after add listB to listA


        var listA = new List<int>();
        listA.Add(100);
        listA.Add(200);
        listA.Add(300);
        listA.Add(400);

        var listB = new List<int>();
        listB.Add(500);
        listB.Add(600);
        listA.AddRange(listB); //ListA -> 100,200,300,400,500,600

var listA = new List<int>();

listA.Add(100);

listA.Add(200);

listA.Add(300);

listA.Add(400);

var listB = new List<int>();

listB.Add(500);

listB.Add(600);

listA.AddRange(listB); //ListA -> 100,200,300,400,500,600

Full example:


using System;
using System.Collections.Generic;

class Program
{
    static void Main(string[] args)
    {
        var listA = new List<int>();
        listA.Add(100);
        listA.Add(200);
        listA.Add(300);
        listA.Add(400);

        var listB = new List<int>();
        listB.Add(500);
        listB.Add(600);

        listA.AddRange(listB); //ListA -> 100,200,300,400,500,600

        Console.ReadLine();
    }
}

using System;

using System.Collections.Generic;

class Program

{

static void Main(string[] args)

{

var listA = new List<int>();

listA.Add(100);

listA.Add(200);

listA.Add(300);

listA.Add(400);

var listB = new List<int>();

listB.Add(500);

listB.Add(600);

listA.AddRange(listB); //ListA -> 100,200,300,400,500,600

Console.ReadLine();

}

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