void UCGiftCardUsageDetail_Loaded(object sender, RoutedEventArgs e) { Loaded -= new RoutedEventHandler(UCGiftCardUsageDetail_Loaded); facade = new GiftCardFacade(CPApplication.Current.CurrentPage); comGiftCardStatus.ItemsSource = EnumConverter.GetKeyValuePairs <ECCentral.BizEntity.IM.GiftCardStatus>(); comGiftCardCategory.ItemsSource = EnumConverter.GetKeyValuePairs <ECCentral.BizEntity.IM.GiftCardType>(); customerInfo = new BizEntity.Customer.CustomerInfo(); this.btnSave.Visibility = System.Windows.Visibility.Collapsed; this.btnVoid.Visibility = System.Windows.Visibility.Collapsed; if (VM != null) { VM.ChannelID = "1"; oldEndDate = VM.EndDate; BaseInfo.DataContext = VM; customerInfo.BasicInfo.CustomerID = VM.CustomerID; customerInfo.BasicInfo.CustomerSysNo = int.Parse(string.IsNullOrEmpty(VM.CustomerSysNo)?"0":VM.CustomerSysNo); facade.GetGiftCardOperateLogByCode(VM.CardCode, (obj, args) => { if (args.FaultsHandle()) { return; } List <ECCentral.BizEntity.IM.GiftCardOperateLog> logs = args.Result; if (logs != null && logs.Count > 0) { StringBuilder str = new StringBuilder(); logs = logs.OrderByDescending(p => p.InDate).ToList(); foreach (ECCentral.BizEntity.IM.GiftCardOperateLog log in logs) { str.AppendFormat("{0} {1} by {2} {3}", log.InDate.Value.ToString("yyyy-MM-dd HH:mm"), log.ActionType.ToDescription(), log.InUser, log.Memo); str.AppendLine(); } tbLog.Text = str.ToString().TrimEnd(); } }); facade.GetGiftCardRedeemLogJoinSOMaster(VM.CardCode, (obj, args) => { if (args.FaultsHandle()) { return; } DataGrid.ItemsSource = args.Result; }); if ((VM.Status == GiftCardStatus.Valid || VM.Status == GiftCardStatus.ManualActive) && VM.AvailAmount.HasValue && VM.AvailAmount > 0) { this.btnSave.Visibility = System.Windows.Visibility.Visible; //this.btnVoid.Visibility = System.Windows.Visibility.Visible; } else { this.dpEndDate.IsEnabled = false; } } }