📦 ObservableCollections/ Cysharp

Установка

public delegate void NotifyCollectionChangedEventHandler<T>(in NotifyCollectionChangedEventArgs<T> e);

public readonly ref struct NotifyCollectionChangedEventArgs<T>
{
    public readonly NotifyCollectionChangedAction Action;
    public readonly bool IsSingleItem;
    public readonly T NewItem;
    public readonly T OldItem;
    public readonly ReadOnlySpan<T> NewItems;
    public readonly ReadOnlySpan<T> OldItems;
    public readonly int NewStartingIndex;
    public readonly int OldStartingIndex;
    public readonly SortOperation<T> SortOperation;
}