var result = numarray.AsEnumerable();

using System;
using System. Collections;
using System.Collections.Generic;
using System. Linq;
using System. Text;
using System.Threading.Tasks;
namespace ConsoleApp1
{
    class Program1
    {
        static void Main(string[] args)
        {
//here we are creating an array NumArray type of int
            int[] NumArray = new int[] { 1, 2, 3, 4,5};
//After applying the AsEnumerable method the output will be store in variable result
            var result = NumArray.AsEnumerable();
//Now we will print the value of variable result one by one with the help of foreach loop
            foreach (var number in result)
        {
            Console.WriteLine(number);
        }
            Console.ReadLine();
        }
        }
}