Erorr in code

Question

if (e.CommandName == "addtocart")
{
int idx = e.Item.ItemIndex;
int ItemID = Convert.ToInt32( DLProductsDetails .DataKeys[idx]);
}
}
I got an error in those red world say that the name do not exit want my datalist is that name

Tan Kai Kai · Answer

ok before it come to this page I have a page full of item a i click it will show all the thing from database and I using datasource to do it

Riyaz Akhtar · Answer

is Datalist is inside any control?

Tan Kai Kai · Answer

have but still got error

Riyaz Akhtar · Answer

Check in ur designer file if DLProductsDetails is added or not . if it is not there add below code in ur designer file, it may resolve ur issue.
protected global::System.Web.UI.WebControls.DataList DLProductsDetails;