asp.net连接DB2 UDB数据库,操作DB2 UDB数据库

if (!Page.IsPostBack)
            {
                using (DB2Connection db2_con = new DB2Connection("server=localhost;database=lynn;uid=administrator;pwd=admin"))
                {
                    db2_con.Open();
                    DB2DataReader db2_dr;

                    DB2Command db2_com;
                    db2_com = new DB2Command("insert into user(USER_NAME) values('love')", db2_con);
                    db2_com.ExecuteNonQuery();
                    db2_com = new DB2Command("Select ID,USER_NAME From USER", db2_con);
                    db2_dr = db2_com.ExecuteReader();
                    while (db2_dr.Read())
                    {
                        this.DropDownList1.Items.Add(new ListItem(db2_dr["ID"].ToString(), db2_dr["USER_NAME"].ToString()));
                    }

                    db2_dr.Close();
                    db2_con.Close();
                }
            }