private void buttonTraziSalu_Click(object sender, RoutedEventArgs e)
        {
            TempSobe.Clear();
            foreach (var soba in Sobe)
            {
                switch (SelectedKriterijum)
                {
                case "Sifra":
                    //if (soba.Sifra.IndexOf(Pretraga, StringComparison.CurrentCultureIgnoreCase) != -1)
                    //{
                    TempSobe.Add(soba);
                    //}
                    break;

                default:
                    TempSobe.Add(soba);
                    break;
                }
            }
        }
        private void UpdateTempSoba()
        {
            Sobe.Clear();
            TempSobe.Clear();
            RoomController             roomController             = new RoomController();
            RenovationPeriodController renovationPeriodController = new RenovationPeriodController();
            List <Room>             rooms   = roomController.ViewRooms();
            List <RenovationPeriod> periods = renovationPeriodController.ViewRenovations();

            if (rooms != null)
            {
                foreach (Room r in rooms)
                {
                    if (periods != null)
                    {
                        foreach (RenovationPeriod p in periods)
                        {
                            if (r.Number == p.room.Number)
                            {
                                Sobe.Add(new Soba()
                                {
                                    Sifra = r.Number, Kapacitet = r.Capacity, Zauzetost = r.Occupation, Tip = r.Usage, Pocetak = p.BeginDate, Kraj = p.EndDate
                                });
                                r.Renovation = true;
                            }
                        }
                    }
                    if (r.Renovation == false)
                    {
                        Sobe.Add(new Soba()
                        {
                            Sifra = r.Number, Kapacitet = r.Capacity, Zauzetost = r.Occupation, Tip = r.Usage
                        });
                    }
                }
            }
            foreach (var soba in Sobe)
            {
                TempSobe.Add(soba);
            }
        }