数据源Source 目标Target

数据源Source-目标Target

数据源实现INotifyPropertyChanged接口，实现“通知”
目标实现依赖属性

举例

后台的数据源，实现INotifyPropertyChanged接口，实现“通知”

public class Student : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; private string _name; public string Name { get { return _name; } set { _name = value; if (this.PropertyChanged != null) { this.PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Name")); } } } } 

数据源赋值DataContext

public BindDemo() { InitializeComponent(); Student student = new Student() { Name = "Lulu" }; DataContext = student; } 

前端的Label绑定Name属性，其中Label是实现了依赖属性的
Tips:WPF的所有现成控件都是实现了依赖属性的

"{Binding Name}">Label> 

示例代码

https://github.com/zLulus/NotePractice/tree/dev3/WPF/WpfDemo/Bind 下的BindDemoForINotifyPropertyChanged

转载于:https://www.cnblogs.com/Lulus/p/8145688.html