/// <summary>
/// Initializes a new instance of the <see cref="PropertyChangeObserver"/> class.
/// </summary>
/// <param name="callback">The callback.</param>
public PropertyChangeObserver(EventHandler <PropertyChangedEventArgs> callback)
{
_callback = callback;
_weakHandler = new WeakEventProxy <PropertyChangedEventArgs>(callback);
}
/// <summary>
/// Initializes a new instance of the <see cref="WeakEvent<TEventArgs>"/> class.
/// </summary>
/// <param name="originalHandler">The original handler.</param>
public WeakEvent(EventHandler <TEventArgs> originalHandler)
{
_originalHandler = originalHandler;
_weakProxy = new WeakEventProxy <TEventArgs>(_originalHandler);
}
/// <summary>
/// Initializes a new instance of the <see cref="CollectionChangeObserver"/> class.
/// </summary>
/// <param name="callback">The callback.</param>
public CollectionChangeObserver(EventHandler <NotifyCollectionChangedEventArgs> callback)
{
_weakEvent = new WeakEventProxy <NotifyCollectionChangedEventArgs>(callback);
_callback = new NotifyCollectionChangedEventHandler(callback);
}