private void btnNewPatientRegister_Click(object sender, EventArgs e) { Client client = new Client(); String bDate = txtNewPatientPersonalNumber.Text; int id = patientHandling.GetDentistIDForNewPatient(cbxNewPatientDentist); if (checkIfValid.checkPersonalNumber(bDate)) { patientHandling.registerNewPatient( client, txtNewPatientPersonalNumber, txtNewPatientFirstName, txtNewPatientLastName, txtNewPatientAddress, txtNewPatientCity, txtNewPatientPostCode, txtNewPatientPhone, txtNewPatientEmail, id); Boolean success = dbConn.InsertNewPatientToDB(client); if (success) { MessageBox.Show("Patient registration was succesful"); ClearTextBoxes(this.Controls); } else { MessageBox.Show("Patient registration failed"); } } else { MessageBox.Show("Not a valid personal number"); } }