public void UpdateItem(string updateCartID, int updateBookID, int
quantity)
{
using (var _db = new Baitayonline.Models.BookContext())
{
try
{
var myItem = (from c in _db.ShoppingCartItems
where c.CartId == updateCartID && c.Book.BookID ==
updateBookID
select c).FirstOrDefault();
if (myItem != null)
{
myItem.Quantity = quantity;
_db.SaveChanges();
}
}
catch (Exception exp)
{
throw new Exception("ERROR: Unable to Update Cart Item - " +
exp.Message.ToString(), exp);
}
}
}
protected void RemoveBookButton_Click(object sender, EventArgs e)
{
using (var _db = new Baitayonline.Models.BookContext())
{
int bookId = Convert.ToInt16(DropDownRemoveBook.SelectedValue);
var myItem = (from c in _db.Books
where c.BookID == bookId
select
c).FirstOrDefault();
if (myItem != null)
{
_db.Books.Remove(myItem);
_db.SaveChanges();
// Tải lại trang.
string pageUrl = Request.Url.AbsoluteUri.Substring(0,
Request.Url.AbsoluteUri.Count() - Request.Url.Query.Count());
Response.Redirect(pageUrl + "?BookAction=remove");
}
else
{
LabelRemoveStatus.Text = "Unable to locate book.";
}
}
}
public void RemoveItem(string removeCartID, int removeBookID)
{
using (var _db = new Baitayonline.Models.BookContext())
{
try
{
var myItem = (from c in _db.ShoppingCartItems
where c.CartId == removeCartID && c.Book.BookID ==
removeBookID
select c).FirstOrDefault();
if (myItem != null)
{
// Xóa
_db.ShoppingCartItems.Remove(myItem);
_db.SaveChanges();
}
}
catch (Exception exp)
{
throw new Exception("ERROR: Unable to Remove Cart Item - " +
exp.Message.ToString(), exp);
}
}
}