private void Update_Click(object sender, RoutedEventArgs e) { if (firstName.DataChanged || surname.DataChanged || birth_date.DataChanged || address.DataChanged || email.DataChanged || phone.DataChanged) { if (ConnectionHelper.CheckName(firstName.Text) && ConnectionHelper.CheckSurname(surname.Text) && ConnectionHelper.CheckEmail(email.Text) && ConnectionHelper.CheckPhoneNumber(phone.Text)) { try { ConnectionHelper.UpdateUserData(firstName.Text, surname.Text, birth_date.SelectedDate, address.Text, email.Text, phone.Text, _userName, _password); } catch (Exception ex) { MessageBox.Show("Database error:\n" + ex.Message, "Personal data update", MessageBoxButton.OK, MessageBoxImage.Error); } finally { firstName.DataChanged = surname.DataChanged = birth_date.DataChanged = address.DataChanged = email.DataChanged = phone.DataChanged = false; } } } else { MessageBox.Show("There is no changes in your personal data!", "Personal data update", MessageBoxButton.OK, MessageBoxImage.Information); } StatusBarString = Properties.Settings.Default.StatusReady; }