protected void linkDelete_Command(object sender, CommandEventArgs e)
{
int bookId = int.Parse(e.CommandArgument.ToString());
OrderDetail orderDetail = bm.getOrderDetail(pendingOrder.OrderID, bookId);
Book book = bm.getBook(bookId);
book.Stock += orderDetail.Quantity;
bm.updateBook(book);
bm.deleteOrderDetail(orderDetail);
Response.Redirect("/Cart.aspx");
}
