Observables. Shorter Getters And Setters. ReactiveUI. See: https://medium.com/@worldbeater/reactive-mvvm-for-net-platform-175dc69cfc82

ReactiveViewModel.cs

public class ReactiveViewModel : ReactiveObject
{
    public ReactiveViewModel()
    {
        Clear = ReactiveCommand.Create(() => { Name = string.Empty; });
        this.WhenAnyValue(x => x.Name) 
            .Select(name => $"Hello, {name}!")
            .ToProperty(this, x => x.Greeting, out greeting);
    }

    public ReactiveCommand<Unit, Unit> Clear { get; }

    private readonly ObservableAsPropertyHelper<string> greeting;
    public string Greeting => greeting.Value;

    private string name = string.Empty;
    public string Name
    {
        get => name;
        set => this.RaiseAndSetIfChanged(ref name, value);
    }
}