private void btnTourAdd_Click(object sender, EventArgs e) { Tour tour = new Tour(); tour.TourName = txtTourName.Text; tour.TourDetails = txtTourDesription.Text; tour.UnitPriceTL = Convert.ToDouble(txtPrice.Text); tour.UnitPriceUSD = Convert.ToDouble(lblTourPriceUSD.Text); tour.UnitPriceEUR = Convert.ToDouble(lblTourPriceEUR.Text); tour.ExtraTransportPrice = Convert.ToDouble(txtTransportPrice.Text); tour.ExtraMuseumPrice = Convert.ToDouble(txtMuseumPrice.Text); tour.TourDate = Convert.ToDateTime(pickerDateTour.Text); tourController.AddGuide(tour); }