static void DisplayAllBooks()
{
BusinessLayer bll = new BusinessLayer();
List <Book> lstBooks = bll.GetAllBooks();
foreach (Book book in lstBooks)
{
Console.WriteLine(book.BookID + "\t\t" + book.BookName + "\t\t" + book.AuthorName + "\t\t"
+ book.Publisher + "\t\t" + book.NoOfCopies + "\t\t" + book.Price);
}
}
