INotifyPropertyChanged

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            BindingList<DemoCustomer> customerList = bindingSource1.DataSource as BindingList<DemoCustomer>;

            customerList[0].Name = "aa";
            bindingSource1.ResetItem(0);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            BindingList<DemoCustomer> customer = new BindingList<DemoCustomer>();
            customer.Add(DemoCustomer.CreateCustomer());
            customer.Add(DemoCustomer.CreateCustomer());
            customer.Add(DemoCustomer.CreateCustomer());

            bindingSource1.DataSource = customer;
            dataGridView1.DataSource = bindingSource1;
        }
    }
    public class DemoCustomer : INotifyPropertyChanged
    {
        private Guid idValue = Guid.NewGuid();
        private string name = string.Empty;

        public string Name
        {
            get { return name; }
            set {
                if (value != this.name)
                {
                    name = value;

                    NotifyPropertyChanged("customer");
                }
            }
        }
        private string phone = string.Empty;

        public string Phone
        {
            get { return phone; }
            set {
                if (value != this.phone)
                {
                    phone = value;
                    NotifyPropertyChanged("phone");
                }
            }
        }

        private void NotifyPropertyChanged(string info)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(info));
            }
        }
        //单例
        private DemoCustomer()
        {
            name = "customer";
            phone = "(555)1234567";
        }
        public static DemoCustomer CreateCustomer()
        {
            return new DemoCustomer();
        }

        public Guid Id
        {
            get
            {
                return this.idValue;
            }
        }
        #region INotifyPropertyChanged 成员

        public event PropertyChangedEventHandler PropertyChanged;

        #endregion
    }
}