private async void PagoMonederoElectronicoViewModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) { switch (e.PropertyName) { case nameof(this.Disponible): this.AcceptCommand.RaiseCanExecuteChanged(); break; case nameof(this.ClientId): { this.Disponible = await _proxy.FindMonederoAsync(this.ClientId.Value); } break; } }