public void ReplaceTo(int id, BookDetail item) { if (Data.Count == 0) { return; } var result = from book in Data where book.BookID == id select book = item.Clone(); }
public void Add(int id, BookDetail item, bool isManual = false) { item.BookID = id; Data.Add(item.Clone()); nextBookID += isManual ? 1 : 0; }