using System;

using ChoETL;

using System.Text;

​

public class Program

{

    public static void Main()

    {

            string csv = @"CustId,Name,Balance,AddedDate

1732,Tom Perez,435.00,05/11/2002

5541,Pedro Gomez,12342.30,06/02/2000

1122,Mark Politti,0.00,01/02/2004

1924,Pablo Ramirez,3321.30,11/24/2002";

​

            StringBuilder csvOut = new StringBuilder();

            using (var r = ChoCSVReader<Customer>.LoadText(csv)

                       .WithFirstLineHeader()

                   )

            {

                using (var w = new ChoCSVWriter<Customer>(csvOut)

                       .WithFirstLineHeader()

                       )

                {

                    w.Write(r.ExternalSort((e1, e2) => DateTime.Compare(e1.AddedDate, e2.AddedDate)));

                }

            }

​

            Console.WriteLine(csvOut.ToString());

    }

    [Serializable]

    public class Customer

    {

        public int CustId { get; set; }

        public string Name { get; set; }

        public decimal Balance { get; set; }

        public DateTime AddedDate { get; set; }

    }

}