using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

​

public static class Module1

{

    public static void Main()

    {

        TestClass[] atc = null; //declare the array with []

        List<TestClass> tcList = new List<TestClass>(); //declare a new list of TestClass

        //Add 5 instances of TestClass to the StandardList

        for (int i = 1; i <= 5; i++)

        {

            TestClass tc = new TestClass();

            tc.FirstName = "Alex" + i.ToString();

            tc.LastName = "Moll" + i.ToString();

            tcList.Add(tc);

        }

        //Turn a list into an array

        atc = tcList.ToArray();

​

        //Loop through all events inside of the StandardList

        Console.WriteLine("Standard List");

        foreach (TestClass item in tcList)

        {

            if (item.Validate() == true)

            {

                Console.WriteLine("Your name is '" + item.FirstName + " " + item.LastName + "'");

            }

            else

            {

                Console.WriteLine("Invalid name provided");

            }

        }

        //Loop through all events inside of the Array

        Console.WriteLine("");

        Console.WriteLine("Array List");

        foreach (TestClass item in atc)

        {

            if (item.Validate() == true)

            {

                Console.WriteLine("Your name is '" + item.FirstName + " " + item.LastName + "'");

            }

            else

            {

                Console.WriteLine("Invalid name provided");

            }

        }

    }

}

​

public class TestClass

{

    public string FirstName

    {

        get;

        set;

    }

​

    public string LastName

    {

        get;

        set;

    }

​

    public bool Validate()

    {

        if (FirstName == null || string.IsNullOrEmpty(FirstName))

        {

            return false;

        }

​

        return true;

    }

}