protected void bindSpecial() { YouthSpecialBLL spe_bll = new YouthSpecialBLL(); DataSet ds = spe_bll.GetList(); ddl_item.DataValueField = "special_id"; ddl_item.DataTextField = "special_title"; ddl_item.DataSource = ds; ddl_item.DataBind(); ddl_item.Items.Insert(0, new ListItem("", "0")); }