using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var data = new[] {

            new{Name = "Checking Zero", Type = "S0200"},

            new{Name = "Checking One", Type = "S0201"},

            new{Name = "Checking Two", Type = "S0202"}

        };

​

        string[] validCheckingAccountTypes = new string[] {"S0200", "S0201"};

        var accounts = from i in data where validCheckingAccountTypes.Contains(i.Type) select i;

        foreach (var i in accounts)

        {

            Console.WriteLine(i.Name);  

        }

    }

}