private void FillFilterLists()
{
StatusList = new ObservableCollection <string>(
ApartmentList.Select(c => c.StatusSaleName)
.Distinct()
.ToList());
HouseAddressList = new ObservableCollection <string>(
ApartmentList.Select(c => c.HouseAddress)
.Distinct()
.ToList());
FloorList = new ObservableCollection <int>(
ApartmentList.Select(c => c.Floor)
.Distinct()
.OrderBy(c => c)
.ToList());
PorchList = new ObservableCollection <int>(
ApartmentList.Select(c => c.Porch)
.Distinct()
.OrderBy(c => c)
.ToList());
ComplexList = new ObservableCollection <string>(
ApartmentList.Select(c => c.NameHousingComplex)
.Distinct()
.OrderBy(c => c)
.ToList());
}