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;
}
