dataPiker.DataContext = employer.dateOfBirth;
                departmentSelect.SelectedIndex = employer.department;
                roomSelect.SelectedValue = employer.room;

        positionSelect.DisplayMemberPath = "positionName";

            roomSelect.ItemsSource = rooms;

                roomSelect.ItemsSource = roomSelect.SelectedIndex(employer.room);

                var rooms = Querys.fillRoom(departmentID).ToArray();

[Female; Male]
|> Signal.constant
|> Bind.Explicit.oneWay source "Genders"

                if (departmentSelect.SelectedValue.ToString() != "")

    public string dateOfBirth { get; set; }
    public int position { get; set; }
    public int department { get; set; }
    public int room { get; set; }

    var rooms = Querys.fillRoom(employer.room).ToArray();
    roomSelect.ItemsSource = rooms;
    roomSelect.DisplayMemberPath = "roomName";
    roomSelect.SelectedItem = rooms.First(x => x.roomId == employer.room);

    var positions = Querys.fillPosition().ToArray();
    positionSelect.ItemsSource = positions;
    positionSelect.DisplayMemberPath = "positionName";
    positionSelect.SelectedItem = positions.First(x => x.positionId == employer.position);

    var departmens = Querys.fillDepartment().ToArray();

                positionSelect.SelectedItem = positions.First(x => x.positionId == employer.position);

if (!flag)
{
    departmentSelect.SelectionChanged += departmentSelect_SelectionChanged;
    flag = true;
}