推荐订阅源

https://www.cnblogs.com/li-peng/p/3169864.html

https://www.cnblogs.com/ColdJokeLife/archive/2013/05/30/3108112.html

//C#5.0 版本
public abstract class ObservableObject : INotifyPropertyChanged
 {
        public event PropertyChangedEventHandler PropertyChanged;
protected void SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = null)
        {
            if (EqualityComparer<T>.Default.Equals(field, value))
            {
                return;
            }

            field = value;
            var handler = this.PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(propertyName));
            }
        }
}

public class Person : NotifyPropertyChangedEx
{
    private string name;

    public string Name
    {
       get { return name; }
       set { this.SetProperty(ref name, value); }
    }