public static void FillDropDownListProductID(DropDownList ddl, SqlInt32 UserID) { ProductBAL balProduct = new ProductBAL(); ddl.DataSource = balProduct.SelectDropDownList(UserID); ddl.DataTextField = "ProductName"; ddl.DataValueField = "ProductID"; ddl.DataBind(); ddl.Items.Insert(0, new ListItem("---Select Product---", "-99")); }