private void btnSave_Click(object sender, EventArgs e) { if (isEditMode) { //edit code var id = int.Parse(lblid.Text); var car = _db.typesOfCars.FirstOrDefault(q => q.id == id); car.model = tbModel.Text; car.make = tbMake.Text; car.vin = tbVin.Text; car.year = int.Parse(tbYear.Text); car.licensePlateNumber = tbLicense.Text; } else { //add code var newCar = new typesOfCar { licensePlateNumber = tbLicense.Text, make = tbMake.Text, model = tbModel.Text, vin = tbVin.Text, year = int.Parse(tbYear.Text) }; _db.typesOfCars.Add(newCar); } _db.SaveChanges(); _manageVehicle.PopulateGrid(); MessageBox.Show("Done"); Close(); }