using System.ComponentModel; using System.Runtime.CompilerServices; using Life.Annotations; namespace Life.ViewModel { public abstract class BaseViewModel : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; [NotifyPropertyChangedInvocator] protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null) { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); } } }