public CompositePathGetter
(
IEnumerable <IBindingPathLink <object> > pathLinks,
PropertyType defaultValue
)
{
_pathLinks = pathLinks;
_defaultValue = defaultValue;
if (pathLinks.IsNullOrEmpty())
{
PropGetters.Add(new SimplePropGetter <object>());
return;
}
IObjWithPropGetter <object> previousPropGetter = null;
foreach (var pathLink in _pathLinks)
{
IObjWithPropGetter <object> propGetter = pathLink.CreateGetter();
PropGetters.Add(propGetter);
if (previousPropGetter != null)
{
IObjWithPropGetter <object> thePreviousPropGetter = previousPropGetter;
previousPropGetter.PropertyChangedEvent += () =>
{
propGetter.TheObj = thePreviousPropGetter.GetPropValue();
};
}
previousPropGetter = propGetter;
}
previousPropGetter.PropertyChangedEvent += () =>
{
if (this.PropertyChangedEvent == null)
{
return;
}
if (!LastPropGetter.HasObj)
{
_cachedValue.TheValue = _defaultValue;
}
else
{
_cachedValue.TheValue = (PropertyType)LastPropGetter.GetPropValue();
}
PropertyChangedEvent?.Invoke();
};
}
public void Addiere(Aufgabe a)
{
// Aufgaben.Add(a); böse
Aufgaben.Add(new Aufgabe
{
Text = a.Text,
ID = Aufgaben.Count
});
PropertyChangedEvent.Invoke(this, EventArgs.Empty);
}
protected virtual void OnRaisePropertyChanged <T>(string propertyName, T previousValue, T actualValue)
{
var action = new Action <string, T, T>((pro, pre, act) => {
PropertyChangedEvent?.Invoke(this, new PropertyChangedEventArgs(pro));
PropertyChanged?.Invoke(this as TNotifier, new NotifierPropertyChangedEventArgs <TNotifier>(pro, (TNotifier)(INotifier <TNotifier>) this, pre, act));
});
if (UseSynchronizerOnRaisePropertyChanged && Synchronizer != null)
{
Synchronizer.Invoke(action, propertyName, previousValue, actualValue).Wait();
}
else
{
action(propertyName, previousValue, actualValue);
}
}
public void TriggerPropertyChanged()
{
PropertyChangedEvent?.Invoke();
}
protected virtual void NotifyPropertyChanged([CallerMemberName] string propertyName = "")
{
PropertyChangedEvent?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
private void ModifyEnum(int value)
{
OnValueChanged.Invoke(value, path);
}
public void PropertyChanged()
{
PropertyChangedEvent?.Invoke(this, EventArgs.Empty);
}
protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
PropertyChangedEvent?.Invoke(propertyName);
}
protected virtual void OnPropertyChanged(string propertyName)
{
PropertyChangedEvent?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}