以下是一个简单的 INotifyPropertyChanged 封装示例：
using System.ComponentModel;
c#兼职Q群：741058172
public class ObservableObject : INotifyPropertyChanged
{public event PropertyChangedEventHandler PropertyChanged;protected void RaisePropertyChanged(string propertyName){PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));}protected void RaisePropertyChanged(string propertyName){PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));}protected bool SetProperty<T>(ref T storage, T value, string propertyName = null){if (Equals(storage, value)){return false;}storage = value;RaisePropertyChanged(propertyName);return true;}
}使用这个封装，你可以在你的 ViewModel 类中继承 ObservableObject 类，以获得 INotifyPropertyChanged 的支持。你只需要在定义属性时使用 SetProperty 方法来设置属性，如下所示：
private string _name;
public string Name
{get => _name;set => SetProperty(ref _name, value, nameof(Name));
}
这会自动触发 PropertyChanged 事件并通知视图更新。
如果UI界面属性的值是你自身属性名称，那么可以再简化下：
public class NotifyPropertyChangedBase : INotifyPropertyChanged{public event PropertyChangedEventHandler PropertyChanged;public void RaisePropertyChanged([CallerMemberName] string propertyName = ""){if (PropertyChanged != null)this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}} public class ClassA:NotifyPropertyChangedBase{private int myVar;public int MyProperty{get { return myVar; }set{if (myVar != value){myVar = value;RaisePropertyChanged();//注意这里可以省略属性名称}}}}参考
)
