SAMPLE_SEARCH

// search button
void MainWindow::on_pushButton_released()
{

    QString info = ui->info->text();
    int column = ui->column->text().toInt(); // manual column num input
    int rowcount = ui->tableNew->rowCount();

    on_pushButton_2_released();

    for (int i = 0; i < rowcount; ++i)
    {
        if ( ui->tableNew->item(i, column)->text() == info )
            continue;
        ui->tableNew->hideRow(i);
    }

}
// clear search button
void MainWindow::on_pushButton_2_released()
{
    int rowcount = ui->tableNew->rowCount();
    for (int i = 0; i < rowcount; ++i)
    {
        ui->tableNew->showRow(i);
    }
}