public IEnumerable<TimeSheetFSWorkingDay> GetDepsTShRecords(Dep dep)
{
if (dep == null)
return TimeSheetFSWorkingDays;
else
return
KadrController.Instance.Model.TimeSheetFSWorkingDays.Where(tswd =>
(tswd.TimeSheet == this) &&
(tswd.FactStaff.PlanStaff.Dep == dep));
}