/// <summary>
/// Subscribes to the CollectionChanged event using a weak subscription.
/// </summary>
/// <param name="collection">The collection.</param>
/// <param name="handler">
/// An action called when the collection event is raised.
/// </param>
/// <returns>A disposable used to terminate the subscription.</returns>
public static IDisposable WeakSubscribe(
this INotifyCollectionChanged collection,
Action <NotifyCollectionChangedEventArgs> handler)
{
Contract.Requires <ArgumentNullException>(collection != null);
Contract.Requires <ArgumentNullException>(handler != null);
return(collection.GetWeakCollectionChangedObservable().Subscribe(handler));
}
/// <summary>
/// Subscribes to the CollectionChanged event using a weak subscription.
/// </summary>
/// <param name="collection">The collection.</param>
/// <param name="handler">
/// An action called when the collection event is raised.
/// </param>
/// <returns>A disposable used to terminate the subscription.</returns>
public static IDisposable WeakSubscribe(
this INotifyCollectionChanged collection,
Action <NotifyCollectionChangedEventArgs> handler)
{
_ = collection ?? throw new ArgumentNullException(nameof(collection));
_ = handler ?? throw new ArgumentNullException(nameof(handler));
return(collection.GetWeakCollectionChangedObservable().Subscribe(handler));
}
