实现目的：

控件和对象双向数据绑定

实现结果：

1. 对象值 -> 控件值
2. 控件值 -> 对象值

using System;
using System.Windows.Forms;namespace ControlDataBind
{public partial class MainForm : Form{People people = new People();public MainForm(){InitializeComponent();}private void btnBind_Click(object sender, EventArgs e){people.Name = "对象";people.Age = 3;txtName.DataBindings.Add("Text", people, "Name");txtAge.DataBindings.Add("Text", people, "Age");}private void btnGetData_Click(object sender, EventArgs e){MessageBox.Show($"对象信息，Name={people.Name},Age={people.Age}");}private void btnSetData_Click(object sender, EventArgs e){people.Name = "111";}}
}

using System.ComponentModel;namespace ControlDataBind
{public class People : INotifyPropertyChanged{string _name;int _age;public string Name{get { return _name; }set{_name = value;OnPropertyChanged(nameof(Name));}}public int Age{get { return _age; }set{_age = value;OnPropertyChanged(nameof(Age));}}public event PropertyChangedEventHandler PropertyChanged;protected virtual void OnPropertyChanged(string propertyName)  //属性变更通知{if (PropertyChanged != null){PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}}}
}