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