public static IEnumerable <tbl_UserTask> GetTaskList(string appType) { DataTable dt = DALUserPermission.GetTaskList(appType); if (dt == null || dt.Rows.Count <= 0) { return(new List <tbl_UserTask>()); } else { return(dt.Rows.Cast <DataRow>().Select(row => new tbl_UserTask(row))); } }