WinForm DataGridView双向数据绑定

程序目标：

　　实现DataGridView与BindingList<T>双向绑定。用户通过DataGridView修改值后立即更新BindList对象的值，代码修改BindList后立即更新DataGridView的显示。

实现环境：vs2017 C# WinForm

程序完整代码包：https://pan.baidu.com/s/1LLUxL1UyqNWkXkPF_LuEig

主要代码：

 ///****************************************************************************
 /// CLR版本     ：4.0.30319.42000
 /// 邮    箱    ：282780854@qq.com
 /// 博    客    ：https://www.cnblogs.com/it89/
 /// 创 建 者    ：龙腾虎跃
 /// 创建日期    ：2019/1/15 21:02:04
 /// 功能描述    ：
 /// 使用说明    ：
 ///****************************************************************************
 using System;
 using System.ComponentModel;
 using System.Windows.Forms;

 namespace TestDataGridViewBind
 {
     public partial class Form1 : Form
     {
         private DataGridView mDataGridView;
         //private BindingSource mBindingSource; //绑定方式一需要的。
         private Button mAddItemBtn;
         private Button mChangeItemValueBtn;
         private Button mDeleteItemBtn;

         public BindingList<People> Peoples { get; set; }

         public Form1()
         {
             this.Load += this.Form1_Load;
             InitializeComponent();
         }
         public void Form1_Load(object sender, EventArgs e)
         {
             //初始化mDataGridView对象
             mDataGridView = new DataGridView();
             mDataGridView.AutoSize = true;
             mDataGridView.Left = ;
             mDataGridView.Top = ;

             //初始化mAddItemBtn按钮。
             this.mAddItemBtn = new Button();
             mAddItemBtn.Text = "Add People";
             mAddItemBtn.AutoSize = true;
             mAddItemBtn.Left = ;
             mAddItemBtn.Top = ;
             mAddItemBtn.Click += this.mAddItemBtn_Click;

             //初始化mDeleteItemBtn按钮
             mDeleteItemBtn = new Button();
             mDeleteItemBtn.Text = "Delete Item";
             mDeleteItemBtn.AutoSize = true;
             mDeleteItemBtn.Left = ;
             mDeleteItemBtn.Top = ;
             mDeleteItemBtn.Click += mDeleteItemBtn_Click;

             //初始化mChangeItemValueBtn按钮。
             mChangeItemValueBtn = new Button();
             mChangeItemValueBtn.Text = "Change Item Value";
             mChangeItemValueBtn.AutoSize = true;
             mChangeItemValueBtn.Left = ;
             mChangeItemValueBtn.Top = ;
             mChangeItemValueBtn.Click += this.mChangeItemValueBtn_Click;

             //初始化Form1。
             this.Controls.Add(mDataGridView);
             this.Controls.Add(mAddItemBtn);
             this.Controls.Add(mDeleteItemBtn);
             this.Controls.Add(mChangeItemValueBtn);
             this.AutoSize = true;
             this.Text = "DataGridView object binding demo";

             //初始化Peoples对象。
             Peoples = new BindingList<People>();
             Peoples.Add(new People("张三", "北京", ));
             Peoples.Add(new People("李四", "上海", ));
             Peoples.Add(new People("王五", "深圳", ));

             //绑定方式一：通过BindingSource对象把Peoples绑定到mDataGridView控件。
             //mBindingSource = new BindingSource();
             //mBindingSource.DataSource = Peoples;
             //mDataGridView.DataSource = mBindingSource;

             //绑定方式二：直接通过mDataGridView.DataBindings绑定Peoples。Peoples不能引发改变通知事件，但是People类型继承了INotifyPropertyChanged接口，可以引发改变通知事件。
             mDataGridView.DataBindings.Add("DataSource", this, "Peoples", false, DataSourceUpdateMode.OnPropertyChanged);
         }

         private void mAddItemBtn_Click(object sender, EventArgs e)
         {
             this.Peoples.Add(new People("新人", "湖南", ));
         }

         private void mDeleteItemBtn_Click(object sender, EventArgs e)
         {
             if (this.Peoples.Count > )
             {
                 this.Peoples.RemoveAt();
             }
         }

         private void mChangeItemValueBtn_Click(object sender, EventArgs e)
         {
             if (Peoples.Count > )
             {
                 this.Peoples[].Address = "浙江";
                 //如果People没有继承INotifyPropertyChanged接口，则需要下面注释的代码，来引发改变通知事件。
                 //this.Peoples.ResetItem(0);//引发改变通知
             }

             if (Peoples.Count > )
             {
                 this.Peoples[].Age = Peoples[].Age + ;
                 //this.Peoples.ResetItem(1);//引发改变通知
             }
         }
     }
 }

Form1.cs

 ///****************************************************************************
 /// CLR版本     ：4.0.30319.42000
 /// 邮    箱    ：282780854@qq.com
 /// 博    客    ：https://www.cnblogs.com/it89/
 /// 创 建 者    ：龙腾虎跃
 /// 创建日期    ：2019/1/15 21:03:04
 /// 功能描述    ：
 /// 使用说明    ：
 ///****************************************************************************
 using System;
 using System.ComponentModel;
 using System.Runtime.CompilerServices;

 namespace TestDataGridViewBind
 {
     /// <summary>
     ///
     /// </summary>
     public class People : INotifyPropertyChanged
     {
         #region "Public Section"
         public string Name
         {
             get => mName;
             set { mName = value; NotifyPropertyChanged("Name"); }
         }

         public string Address
         {
             get => mAddresss;
             set { mAddresss = value; NotifyPropertyChanged("Address"); }
         }

         public int Age
         {
             get => mAge;
             set { mAge = value; NotifyPropertyChanged("Age"); }
         }

         public People(string name, string address, int age)
         {
             mName = name;
             mAddresss = address;
             mAge = age;
         }

         public event PropertyChangedEventHandler PropertyChanged;

         #endregion

         #region "Private Section"
         private string mName;
         private string mAddresss;
         private int mAge;

         /// <summary>
         /// 该方法由每个属性Set访问器调用。
         /// </summary>
         /// <param name="propertyName"></param>
         private void NotifyPropertyChanged([CallerMemberName] String propertyName = "")
         {
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }

         #endregion
     }
 }

People.cs