private void Switch_CarRent_OnValuechange(object sender, EventArgs e)
 {
     if (Switch_CarRent.Value == true)
     {
         comboBox_selectCarType.Enabled = true;
         //Call procedure to get all data for renting cars
         try
         {
             DAL.Dal_RentCars.Get_Cars_Rent(Form1.ReserveRoom.Hotel_ID);
         }
         catch (OracleException ex)
         {
             DAL.Log.LogMessage(ex);
         }
         comboBox_selectCarType.Sorted = true;
         foreach (Entities.RentCars cars in DAL.Dal_RentCars.Rents)
         {
             comboBox_selectCarType.Items.Add(GetAproximatedPriceString(cars));
         }
     }
     else if (Switch_CarRent.Value == false)
     {
         comboBox_selectCarType.Enabled = false;
         comboBox_selectCarType.Text    = null;
         rentedCar = null;
         comboBox_selectCarType.Items.Clear();
         AllTextboxReservation_Update();
     }
 }
        private void ComboBox_selectCarType_SelectedIndexChanged(object sender, EventArgs e)
        {
            //Get price of car from combobox

            foreach (var rent in DAL.Dal_RentCars.Rents)
            {
                if (comboBox_selectCarType.Text == GetAproximatedPriceString(rent))
                {
                    rentedCar = rent;
                    break;
                }
            }
            AllTextboxReservation_Update();
        }
 string GetAproximatedPriceString(Entities.RentCars cars)
 {
     return(String.Format("{0} ({1} {2})", cars.CAR_NAME_TYPE,
                          AproximatePrice(Convert.ToDouble(CurrencyConversion(Convert.ToDecimal(cars.RENT_PRICE), Standard_currency, GetHotelRegionCurrencyISO(country_name)))),
                          currency));
 }