private void Rebuild()
{
ReplaceEverythingBy(_collection.Select(x => x.Value).Where(x => x.Enabled).OfType <T>());
}
internal AcEnabledOnlyCollection(IAcWrapperObservableCollection collection) : base(collection.Select(x => x.Value).Where(x => x.Enabled).OfType <T>())
{
_collection = collection;
collection.CollectionChanged += Collection_CollectionChanged;
collection.WrappedValueChanged += Collection_WrappedValueChanged;
}