public override INotificationResult Notify(IList <INotificationResult> sources)
{
if (sources.Count > 0)
{
var oldValue = ((IValueChangedNotificationResult)sources[0]).OldValue;
listener.Unsubscribe();
AttachPropertyChangeListener(Target.Value);
}
return(base.Notify(sources));
}
public override INotificationResult Notify(IList <INotificationResult> sources)
{
IValueChangedNotificationResult <T> targetChange = null;
if (sources.Count >= 1 && sources[0].Source == Target)
{
targetChange = sources[0] as IValueChangedNotificationResult <T>;
}
else if (sources.Count == 2 && sources[1].Source == Target)
{
targetChange = sources[1] as IValueChangedNotificationResult <T>;
}
if (targetChange != null)
{
listener.Unsubscribe();
AttachPropertyChangeListener(targetChange.NewValue);
}
Apply();
Value.Value = MemberGet(Target.Value);
return(new ValueChangedNotificationResult <T>(this, targetChange.OldValue, targetChange.NewValue));
}
public Entry()
{
listener = new PropertyChangeListener(this);
Successors.Attached += (obj, e) => listener.Subscribe(this, "Value");
Successors.Detached += (obj, e) => listener.Unsubscribe();
}