public CollectionChangedWeakEventListener(INotifyCollectionChanged source, NotifyCollectionChangedEventHandler handler)
{
_bag = new AnonymousCollectionChangedEventHandlerBag(source, handler);
Initialize(
h => new NotifyCollectionChangedEventHandler(h),
h => source.CollectionChanged += h,
h => source.CollectionChanged -= h,
(sender, e) => _bag.ExecuteHandler(e));
}
/// <summary>
/// コンストラクタ
/// </summary>
/// <param name="source">INotifyCollectionChangedオブジェクト</param>
public CollectionChangedWeakEventListener([NotNull] INotifyCollectionChanged source)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
_bag = new AnonymousCollectionChangedEventHandlerBag(source);
Initialize(
h => new NotifyCollectionChangedEventHandler(h ?? throw new ArgumentNullException(nameof(h))),
h => source.CollectionChanged += h,
h => source.CollectionChanged -= h,
(sender, e) => _bag.ExecuteHandler(e ?? throw new ArgumentNullException(nameof(e))));
}
