报错了!!!
foreach (DataRow dr in ((DataTable)Session["Cart"]).Rows)
{
Order_detail or_de = new Order_detail();
or_de.Order_id = T_orderManage.SelectId();
or_de.Cnt = Convert.ToInt32(dr["number"]);
or_de.Order_book = Convert.ToInt32(dr["bookId"]);
or_de.Total = Convert.ToDouble(Request.Params["money"]);
Order_detailManage.AddOrder_detail(or_de);
}
异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。
源错误:
行 43: //{
行 44:
行 45: foreach (DataRow dr in ((DataTable)Session["Cart"]).Rows)
行 46: {
行 47: Order_detail or_de = new Order_detail();
源文件: e:\S2项目\MyDictionaryShopp\Default2.aspx.cs 行: 45