/// <summary> /// query total count by lanbuda expression /// </summary> /// <param name="predicate"></param> /// <returns></returns> public int Count(Expression <Func <MailTemplate, bool> > predicate) { try { return(_repository.Count(predicate)); } catch (Exception ex) { _log.LogError("MailTemplateAppService Count error occured:" + ex.Message); return(0); } }