1  void MainWindow::on_insertButton_clicked()
2  {
3    QString fname, lname, age;
4    fname = ui->nameLineEdit->text();
5    lname = ui->surnameLineEdit->text();
6    age = ui->ageSpinBox->text();
7    QTableWidgetItem *item1 = new QTableWidgetItem(fname);
8    QTableWidgetItem *item2 = new QTableWidgetItem(lname);
9    QTableWidgetItem *item3 = new QTableWidgetItem(age);
10   if (row > 2)
11        ui->tableWidget->insertRow(row);
12   ui->tableWidget->setItem(row, 0, item1);
13   ui->tableWidget->setItem(row, 1, item2);
14   ui->tableWidget->setItem(row, 2, item3);
15   row ++;
16 }