public BookRisultatiViewModel(Book libro)
{
Repository repo = new Repository();
__book = libro;
books = repo.FindByTitle(libro.Title).ToList();
booksAutori = repo.FindByAuthor(libro.Author).ToList();
}
public BookViewModel(IEnumerable<Book> libri )
{
repo = new Repository(_mongoDatabase);
_libri = repo.FindByTitle(Titolo) as List<Book>;
}