using System;

using ChoETL;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var input1 = ChoCSVReader.LoadText(csv1).WithFirstLineHeader().ToArray();

        var input2 = ChoCSVReader.LoadText(csv2).WithFirstLineHeader().ToArray();

​

        using (var output = new ChoCSVWriter(Console.Out).WithFirstLineHeader())

        {

            output.Write(input1.OfType<ChoDynamicObject>().Except(input2.OfType<ChoDynamicObject>(), new ChoDynamicObjectEqualityComparer(new string[] { "id" })));

            output.Write(input2.OfType<ChoDynamicObject>().Except(input1.OfType<ChoDynamicObject>(), new ChoDynamicObjectEqualityComparer(new string[] { "id" })));

        }

    }

    static string csv1 = @"id,name

1,Tom

2,Mark

3,Angie";

    static string csv2 = @"id,name

1,Tom

2,Mark

4,Lu";

}