C#_WinForms_DataBinding

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace DataBindingTutorial
{
    public partial class Form1 : Form
    {
        BindingSource bs = new BindingSource();

        public Form1()
        {
            InitializeComponent();
        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            bs.DataSource = typeof(Airplane);                                //**
            bs.Add(new Airplane("Boeing 747", 800));
            bs.Add(new Airplane("Airbus A380", 1023));
            bs.Add(new Airplane("Cessna 162", 67));

            grid.DataSource = bs;                                            //**
            grid.AutoGenerateColumns = true; // create columns automatically //**
            txtModel.DataBindings.Add("Text", bs, "Model");
        }
    }

    class Airplane
    {
        public Airplane(string model, int fuelKg)
        {
            _id = ++lastID; Model = model; _fuelKg = fuelKg;
        }
        private static int lastID = 0;
        public int _id;
        public int ID { get { return _id; } }
        public int _fuelKg;
        public int FuelLeftKg { get { return _fuelKg; } set { _fuelKg = value; } }
        public string _model;
        public string Model { get { return _model; } set { _model = value; } }
        public List<Passenger> _passengers = new List<Passenger>();
        public List<Passenger> Passengers { get { return _passengers; } }
    }

    class Passenger
    {
        public Passenger(string name)
        {
            _id = ++lastID; Name = name;
        }
        private static int lastID = 0;
        public int _id;
        public int ID { get { return _id; } }
        public string _name;
        public string Name { get { return _name; } set { _name = value; } }
    }
}