// 判斷該天是否已經有考勤紀錄
        private Boolean JudgeWAExist()
        {
            WorkAttendanceModel waModel = new WorkAttendanceModel();

            waModel.SetWAEmplID(this._workAttendanceModel.GetWAEmplID());
            waModel.SetWADate(this._workAttendanceModel.GetWADate());

            this._waService = new WorkAttendanceService(waModel);

            waModel = this._waService.SearchWAByEmplIDAndDate();

            String waStatus = waModel.GetWAStatus();
            if (waStatus != null)
                return true;

            return false;
        }
        //呼叫service 利用員工ID與日期查詢work attendance資料
        public WorkAttendancePresentationModel SearchDataByEmplIDAndDate()
        {
            WorkAttendancePresentationModel waPresentationModel = new WorkAttendancePresentationModel();

            if (this._workAttendanceModel.GetWAEmplID() == null || this._workAttendanceModel.GetWAEmplID() == "")
                MessageBox.Show("請輸入員工ID");
            else
            {
                this._waService = new WorkAttendanceService(_workAttendanceModel);
                this._workAttendanceModel = this._waService.SearchWAByEmplIDAndDate();

                waPresentationModel.SetWAEmplID(this._workAttendanceModel.GetWAEmplID());
                waPresentationModel.SetWADate(this._workAttendanceModel.GetWADate());
                waPresentationModel.SetWAStatus(this._workAttendanceModel.GetWAStatus());
                waPresentationModel.SetStartTime(this._workAttendanceModel.GetStartTime());
                waPresentationModel.SetEndTime(this._workAttendanceModel.GetStartTime());
                waPresentationModel.SetIsOvertime(this._workAttendanceModel.GetIsOvertime());
                waPresentationModel.SetStartOvertime(this._workAttendanceModel.GetStartOvertime());
                waPresentationModel.SetEndOvertime(this._workAttendanceModel.GetEndOvertime());

                if (waPresentationModel.GetWAStatus() == null || waPresentationModel.GetWAStatus() == "")
                {
                    MessageBox.Show("該筆考勤紀錄不存在!");
                    waPresentationModel.SetWAEmplID(null);
                }
            }
            return waPresentationModel;
        }
 // 建構子
 public WorkAttendanceService(WorkAttendanceModel workAttendanceModel)
 {
     this._workAttendanceModel = workAttendanceModel;
 }