We can easily convert an array to a list using the below methods in C#. Let us see the methods, 

• Using List Constructor
• Using ToList() method

Using List Constructor

The list constructor is used to convert an array into a list using List<T>() constructor which accepts IEnumerable<T> as an argument. In the below example, we initialize a new instance of the List<T> class which copies the elements from the cars collection.

using System;
using System.Collections.Generic;

namespace ConvertArrayToList
{
    class Program
    {
        static void Main()
        {
            // Cars array
            string[] cars = { "Mazda", "Toyota", "Audi", "Benz", "Skoda" };
            
            // List of cars
            List<string> listOfCars = new List<string>(cars);

            // Print cars
            foreach (var car in listOfCars)
                Console.WriteLine(car);

            Console.ReadKey();
        }
    }
}

Output:

Mazda
Toyota
Audi
Benz
Skoda

Using ToList() method

The easiest way in C# to convert an array into a list is using ToList() method. In the below example, we use the ToList() method which converts an array of elements into a  that a List<T>.

using System;
using System.Collections.Generic;
using System.Linq;

namespace ConvertArrayToList
{
    class Program
    {
        static void Main()
        {
            // Cars array
            string[] cars = { "BMW", "Audi", "Ferrari", "Rolls Royce", "Honda" };
            
            // List of cars
            List<string> listOfCars = cars.ToList();

            // Print cars
            foreach (var car in listOfCars)
                Console.WriteLine(car);

            Console.ReadKey();
        }
    }
}

Output:

BMW
Audi
Ferrari
Rolls Royce
Honda