private void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
if (propertyName == "Rooms")
{
CollectionChangedEvent.Invoke(null, null);
}
}
/// <summary>
/// Called when the value of the <see cref="SourceProperty"/> changes.
/// </summary>
/// <param name="oldValue">The old value of the property.</param>
/// <param name="newValue">The new value of the property.</param>
internal void OnSourceChanged(IEnumerable oldValue, IEnumerable newValue)
{
if (oldValue != newValue)
{
if (oldValue is INotifyCollectionChanged collection1)
{
CollectionChangedEvent.RemoveListener(collection1, this);
}
OnItemsReset(newValue);
if (newValue is INotifyCollectionChanged collection2)
{
CollectionChangedEvent.AddListener(collection2, this);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ContainerCollection"/> class.
/// </summary>
/// <param name="items">The input data objects.</param>
/// <param name="converter">The underlying converter.</param>
internal ContainerCollection(IList items, ItemsConverter converter) : this(new ObservableCollection <DependencyObject>(converter.GetContainers(items)))
{
this.converter = converter;
propertyListener = new PropertyChangedListener(this);
PropertyChangedEvent.AddListener(converter, propertyListener);
if (items is INotifyCollectionChanged collection)
{
this.items = items;
collectionListener = new CollectionChangedListener(this);
CollectionChangedEvent.AddListener(collection, collectionListener);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GroupingCollection"/> class.
/// </summary>
/// <param name="enumerable">The input sequence.</param>
/// <param name="grouping">The underlying grouping.</param>
internal GroupingCollection(IEnumerable <DependencyObject> enumerable, Grouping grouping) : this(new RecomposableCollection <DependencyObject>(grouping.GroupSort(enumerable)))
{
this.grouping = grouping;
propertyListener = new PropertyChangedListener(this);
PropertyChangedEvent.AddListener(grouping, propertyListener);
if (enumerable is INotifyCollectionChanged collection)
{
this.enumerable = enumerable;
collectionListener = new CollectionChangedListener(this);
CollectionChangedEvent.AddListener(collection, collectionListener);
}
}
private void OnCollectionChanged()
{
CollectionChangedEvent?.Invoke(_dictionary.Values.ToArray());
}