Exercise - Inner Classes result

The ShowEmployee class should look like :

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using Firefly.Box;
using ENV;
using ENV.Data;

namespace Northwind.Exercises
{
    public class ShowEmployees : UIControllerBase
    {

        public readonly Models.Employees Employees = new Models.Employees();
        public readonly NumberColumn NumberOfCars = new NumberColumn();
        public readonly NumberColumn LatesModel = new NumberColumn();

        public ShowEmployees()
        {
            From = Employees;
        }

        public void Run()
        {
            Execute();
        }

        protected override void OnLoad()
        {
            View = () => new Views.ShowEmployeesView(this);
        }

        protected override void OnEnterRow()
        {
            new GetCarsInfo(this).Run();
        }

        class GetCarsInfo : BusinessProcessBase
        {
            public readonly Models.EmployeeCars EmployeeCars = new Models.EmployeeCars();

            ShowEmployees _parent;
            public GetCarsInfo(ShowEmployees parent)
            {
                _parent = parent;
                From = EmployeeCars;
                Where.Add(EmployeeCars.EmployeeID.IsEqualTo(_parent.Employees.EmployeeID));
            }
            public void Run()
            {
                _parent.NumberOfCars.Value = 0;
                _parent.LatesModel.Value = 0;
                Execute();
            }
            protected override void OnLoad()
            {

            }
            protected override void OnEnterRow()
            {
                _parent.NumberOfCars.Value++;
                if (EmployeeCars.CarYear > _parent.LatesModel)
                    _parent.LatesModel.Value = EmployeeCars.CarYear;
            }
        }
    }
} 

The run time version should look like :

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