/// <summary>Initializes a new instance of the <see cref="ItemAddingEventArgs"/> class.
/// </summary>
/// <param name="newItem">The new element to add into a specific <see cref="IdentifierNameableDictionary<T>"/> instance.</param>
/// <param name="oldItem">The element of a specific <see cref="IdentifierNameableDictionary<T>"/> object which will
/// be replaced by <paramref name="newItem"/>; or <c>null</c> if no such element exists.</param>
internal ItemAddingEventArgs(IIdentifierNameable newItem, IIdentifierNameable oldItem)
{
NewItem = newItem;
OldItem = oldItem;
Cancel = false;
}
/// <summary>Initializes a new instance of the <see cref="ItemAddedEventArgs"/> class.
/// </summary>
/// <param name="newItem">The new element that has been added into some <see cref="IdentifierNameableDictionary<T>"/> instance.</param>
/// <param name="state">The state.</param>
internal ItemAddedEventArgs(IIdentifierNameable newItem, ItemAddedState state)
{
NewItem = newItem;
State = state;
}
