list collection working

Question

 hi guys i was interested to know how list collection work and i tried to create my own collection like list please guide me if this could the way that list collection would have been created .its obvious that original list class must have huge coding.

 

 

 

 

using System;

namespace ConsoleApplication12

{

    class customer

    {

        public string name;

        public int custID;

    }

    class MyList<T>

    {

        public T[] MyListElement = new T[3];

        private int index=0;

            public void Add(T cust)

        {

           

            if (index == MyListElement.Length)

            {

                Array.Resize<T>(ref MyListElement,MyListElement.Length+3);

                MyListElement[index] = cust;

                index ++;

                return;

                

            }

            MyListElement[index] = cust;

            index ++;

 

        }

        

    }

    class Program

    {

        static void Main(string[] args)

        {

            customer c = new customer() {name="prashant",custID=2 };

            customer c1 = new customer() { name = "amit", custID = 3 };

            customer c2 = new customer() { name = "ajit", custID = 4 };

            customer c3 = new customer() { name = "pritesh", custID = 5 };

            customer c4 = new customer() { name = "jo", custID = 33 };

            customer c5 = new customer() { name = "ko", custID = 43 };

            customer c6 = new customer() { name = "do ", custID = 53 };

            customer c7 = new customer() { name = "fo", custID = 53 };

            MyList<customer> customers = new MyList<customer>();

            

            customers.Add(c);

            customers.Add(c1);

            customers.Add(c2);

            customers.Add(c3);

            customers.Add(c4);

            customers.Add(c5);

            customers.Add(c6);

            customers.Add(c7);

            Console.WriteLine(customers.MyListElement.Length);

            Console.ReadLine();

        }

    }

}