protected void ddl_Server_SelectedIndexChanged(object sender, EventArgs e) { nReturn = cloud.m_tbPCID_Server_PObject_List(numServer); dt = cloud.dsReturn.Tables[0]; SortedList <string, string> list = new SortedList <string, string>(); list.Add(".", "=Object="); foreach (DataRow dr in dt.Rows) { list.Add(Convert.ToString(dr["PObjectName"]), dr["PObjectName"].ToString()); } ddl_Object.DataSource = list; ddl_Object.DataValueField = "Key"; ddl_Object.DataTextField = "Value"; ddl_Object.DataBind(); }