private void Init()
{
PropertyChanged += (s, e) =>
{
// Update IsEditable
if (e.PropertyName == nameof(Status))
{
OnPropertyChanged(nameof(IsEditable));
}
if (e.PropertyName == nameof(Label) || e.PropertyName == nameof(Description) || e.PropertyName == nameof(Type))
{
((Command)SaveBelegCommand).ChangeCanExecute();
}
//OnPropertyChanged(nameof(CanSave));
};
SaveBelegCommand = new Command(async() =>
{
Beleg beleg = this.GetBusinessObject();
if (beleg.Thumbnail == null && beleg.Image != null)
{
beleg.Thumbnail = await BelegService.CreateThumbnail(beleg.Image);
}
var result = Storage.Database.StoreBeleg(beleg).Result;
if (result > 0)
{
Callback();
}
}, () => CanSave);
StartCameraCommand = new Command(async() =>
{
var img = await ImageServices.CaptureImage();
Image = ConvertStreamToByteArray(img);
});
SelectPictureCommand = new Command(async() =>
{
var img = await ImageServices.SelectImage();
Image = ConvertStreamToByteArray(img);
});
AddValidations();
}
public static void UpdateStaticValues()
{
BelagTypes = BelegService.GetTypeList().Result.ToList();
}
public BelegMasterViewModel(INavigation navigation, Beleg[] belegList)
{
selectMode = false;
SelectBelegeCommand = new Command(() =>
{
selectMode = !selectMode;
if (!selectMode)
{
resetSelectedBelege();
}
});
ExportBelegeCommand = new Command(async() =>
{
if (!selectMode)
{
return;
}
Beleg[] selectedBelege = getSelectedBelege().ToArray();
await new BelegServiceHelper().ExportBelege(selectedBelege);
resetSelectedBelege();
selectMode = false;
});
DeleteBelegeCommand = new Command(async() =>
{
if (!selectMode)
{
return;
}
Beleg[] selectedBelege = getSelectedBelege().ToArray();
int[] belegNummern = new int[selectedBelege.Length];
for (int ix = 0; ix < selectedBelege.Length; ++ix)
{
belegNummern[ix] = selectedBelege[ix].Belegnummer.Value;
}
await BelegService.DeleteBelege(BelegService.USER, belegNummern);
await Storage.Database.RemoveBelege(selectedBelege);
resetSelectedBelege();
selectMode = false;
});
AddNewBelegCommand = new Command(() =>
{
navigation.PushAsync(new DetailPage(null, navigation));
});
Belege = new ObservableCollection <BelegDetailsViewModel>(); // Ladeoperation von Service
if (belegList != null)
{
foreach (Beleg beleg in belegList)
{
_belege.Add(new BelegDetailsViewModel(beleg));
}
}
}