/// <summary>
/// Konstruktor
/// Initialisierung der Commands
/// </summary>
public AktieViewModel()
{
PropertyChanged += AktieViewModel_PropertyChanged;
_aktienStorage = new AktienStorageService();
SaveAktieCommand = new RelayCommand(Save, CanSave);
GetAktieBySymbolCommand = new RelayCommand<string>(GetAktieDetailsBySymbolAsync);
DeleteAktieCommand = new RelayCommand<string>(Delete);
}
/// <summary>
/// Konstruktor
/// Initialisierung der Commands
/// Registrierung von Mesages
/// </summary>
public AktienViewModel()
{
_aktienStorage = new AktienStorageService();
Aktien = new ObservableCollection<AktieViewModel>();
NavigateToDetailsCommand = new RelayCommand<AktieViewModel>(NavigateToDetails);
//empfängt Nachricht aus View, sobald die Symbolliste neu geladen werden soll
Messenger.Default.Register<object>(this, "UpdateListMessage", (o) => UpdateAsync());
}
/// <summary>
/// bei Instanz-Änderung des NetworkServices
/// den AktienStorageService neu instanziieren
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AktieViewModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName.Equals("NetworkService"))
{
_aktienStorage = new AktienStorageService();
}
}
