/// <summary>
/// Initializes a new instance of the <see cref="SelectableCollectionSelector{T}"/> class.
/// </summary>
/// <param name="items">The source items. This instance is the only way to modify the selector's collection.</param>
public SelectableCollectionSelector(ObservableCollection <T> items) : base(items)
{
foreach (var selectableItem in Items)
{
SelectionChangedEventManager.AddListener(selectableItem, this);
}
}
/// <summary>
/// Called when items are added to the source collection.
/// </summary>
/// <param name="newStartingIndex">New index of the starting.</param>
/// <param name="newItems">The new items.</param>
protected override void OnItemsAdded(int newStartingIndex, IList newItems)
{
base.OnItemsAdded(newStartingIndex, newItems);
foreach (T selectableItem in newItems)
{
SelectionChangedEventManager.AddListener(selectableItem, this);
}
}
/// <summary>
/// Called when the source collection is reseted.
/// </summary>
protected override void OnCollectionReset()
{
base.OnCollectionReset();
foreach (var selectableItem in Items)
{
SelectionChangedEventManager.AddListener(selectableItem, this);
}
}
/// <summary>
/// Called when items are removed from the source collection.
/// </summary>
/// <param name="oldStartingIndex">Old index of the starting.</param>
/// <param name="oldItems">The old items.</param>
protected override void OnItemsRemoved(int oldStartingIndex, IList oldItems)
{
foreach (T selectableItem in oldItems)
{
SelectionChangedEventManager.RemoveListener(selectableItem, this);
}
base.OnItemsRemoved(oldStartingIndex, oldItems);
}