public void Mark(bool isMarked, long isbn)
{
var book = dbContext.Books.SingleOrDefault(b => b.Isbn == isbn);
if (book == null)
{
throw new Exception("Can't find a book with ISBN = " + isbn);
}
book.IsMakred = isMarked;
dbContext.Entry(book).State = EntityState.Modified;
dbContext.SaveChanges();
}
private void LoadBooks(string isbns)
{
var newRecords = new List <Book>();
var isbnList = isbns.Split(' ');
foreach (var isbn in isbnList)
{
LoadBook(isbn, newRecords);
}
if (newRecords.Count > 0)
{
dbContext.Books.AddRange(newRecords);
dbContext.SaveChanges();
}
}