public void Add(params string[] bookIds)
{
foreach (var bookId in bookIds)
{
selected[Canon.BookIdToNumber(bookId) - 1] = true;
}
}
/// <summary>
/// Remove a single book from BookSet.
/// </summary>
/// <param name="bookId">BookId (e.g. "GEN") to remove</param>
public void Remove(string bookId)
{
selected[Canon.BookIdToNumber(bookId) - 1] = false;
}