protected void dlBook_ItemCommand(object source, DataListCommandEventArgs e)
{
int bookId = Convert.ToInt32(e.CommandArgument.ToString());
// int bookId = Int32.Parse(e.CommandArgument.ToString());
BookInfo book = BookManager.GetBookById(bookId);
if (Session["Cart"] != null)
{
CartInfo cart = (CartInfo)Session["Cart"];
if (CartManager.ExistBook(cart, book))
{
CartManager.IncreaseBook(cart, book, 1);
}
else
{
CartManager.AppendBook(cart, book, 1);
}
}
else
{
CartInfo cart = CartManager.BuildCart();
CartManager.AppendBook(cart, book, 1);
Session["Cart"] = cart;
}
Response.Redirect("ShopCart.aspx");
}
