private void NewRoom(object sender, AddingNewEventArgs e)
{
var room = new Room
{
FloorNumber = (Floor)Floors.GetValue(Randomizer.Next(Floors.Length)),
HostelNumber = (Hostel)Hostels.GetValue(Randomizer.Next(Hostels.Length)),
Capacity = (Capacity)Capacities.GetValue(Randomizer.Next(Capacities.Length)),
RoomNumber = Randomizer.Next(100, 500)
};
e.NewObject = room;
}