private void RemoveAll()
{
allItems.Clear();
CollectionChangeCleared?.Invoke(this, EventArgs.Empty);
}
private void IdentityCollection_CollectionChangeCleared(object sender, EventArgs e)
{
CollectionChangeCleared?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Removes all items from collection and sends event <see cref="CollectionChangeCleared"/>.
/// </summary>
public void Clear()
{
identityItems.Clear();
CollectionChangeCleared?.Invoke(this, EventArgs.Empty);
}
