protected override void UpdateSummary(User currentUser, WorkDay wDay)
 {
     summaryInfo = wDay == null ? SummaryInfo.Zero : Summarizer.GetSummaryFromYear(currentUser, wDay.WorkTime.DateOfWork);
     RaisePropertyChanged(nameof(SummaryTotalHours));
     RaisePropertyChanged(nameof(SummaryTotalRequired));
     RaisePropertyChanged(nameof(SummaryTotalAccounted));
     RaisePropertyChanged(nameof(SummaryTotalOvertime));
 }