1)数据源 

添加一个Student类：

(Binding是一种自动机制，当值变化后属性要有能力通知Binding，让Binding把变化传递给UI元素。方法是在属性set语句中激发一个PropertyChanged事件。这个事件不用我们声明，我们要做到的是让作为数据源的类实现System.ComponentModel名称空间中的INotifyPropertyChanged接口。当为Binding设置了数据源后，Binding就会自动监听来自这个接口的PropertyChanged事件。)

using System;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Text;namespace TestBinding{    class Student:INotifyPropertyChanged//实现这个接口，让Binding自动监听    {        public event PropertyChangedEventHandler PropertyChanged;        private string name;        public string Name        {            get { return name; }            set {                name = value;                //激发事件                if (this.PropertyChanged != null)                {                    this.PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Name"));                }            }        }    }}

或者：

using System;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Text;namespace TestBinding{    class Student:INotifyPropertyChanged//实现这个接口，让Binding自动监听    {        public event PropertyChangedEventHandler PropertyChanged;        private string name;        public string Name        {            get { return name; }            set {                name = value;                //激发事件                PropertyChangedEventHandler handler = PropertyChanged;                if (this.PropertyChanged != null)                {                    //this.PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Name"));                    handler(this, new PropertyChangedEventArgs("Name"));                }            }        }    }}

 

2)编写前台代码：

XAML:

 

3)使用Binding把数据源和UI元素连接起来

C#:

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;namespace TestBinding{    /// 
    /// MainWindow.xaml 的交互逻辑    /// 
    public partial class MainWindow : Window    {        Student stu;        public MainWindow()        {            InitializeComponent();            /*            //准备数据源            stu = new Student();            //准备Binding            Binding binding = new Binding();            binding.Source = stu;            binding.Path = new PropertyPath("Name");//为Binding指定访问路径            //使用Binding连接数据源与Binding目标            BindingOperations.SetBinding(textBoxName, TextBox.TextProperty, binding);            */            //以上三合一的做法：            this.textBoxName.SetBinding(TextBox.TextProperty, new Binding("Name") { Source = stu = new Student() });            //this.textBoxName.SetBinding(TextBox.TextProperty, new Binding() { Source = stu = new Student(),Path=new PropertyPath("Name") });        }        private void Button_Click(object sender, RoutedEventArgs e)        {            stu.Name += "Name";        }    }}

 

 

截图：