void MainWindow::on_pushButton_3_clicked()
{

        ui->tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
        ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);

        //Заголовки столбцов

        ui->tableWidget->setColumnCount(10);

        QStringList horizontalHeader;
        horizontalHeader.append("ID");
        horizontalHeader.append("Бренд");
        horizontalHeader.append("Модель");
        horizontalHeader.append("Объем, Гб.");
        horizontalHeader.append("Форм-фактор");
        horizontalHeader.append("Вес, г.");
        horizontalHeader.append("Ширина, см.");
        horizontalHeader.append("Высота, см.");
        horizontalHeader.append("Длина, см.");
        horizontalHeader.append("Цена, руб.");

        ui->tableWidget->setHorizontalHeaderLabels(horizontalHeader);

        //Заголовки строк

        int k = myList.size();

        ui->tableWidget->setRowCount(k);

        //Внесение данных

        int j;

        for(int i = 0; i < k; i++){

            j = 0;

            QTableWidgetItem *one = new QTableWidgetItem(QString::number(myList.at(i).getId()));
            ui->tableWidget->setItem(i, j, one);
            j++;

            QTableWidgetItem *two = new QTableWidgetItem(myList.at(i).getBrand());
            ui->tableWidget->setItem(i, j, two);
            j++;

            QTableWidgetItem *three = new QTableWidgetItem(myList.at(i).getModel());
            ui->tableWidget->setItem(i, j, three);
            j++;

            QTableWidgetItem *four = new QTableWidgetItem(QString::number(myList.at(i).getVolume()));
            ui->tableWidget->setItem(i, j, four);
            j++;

            QTableWidgetItem *five = new QTableWidgetItem(myList.at(i).getFormFactor());
            ui->tableWidget->setItem(i, j, five);
            j++;

            QTableWidgetItem *six = new QTableWidgetItem(QString::number(myList.at(i).getWeight()));
            ui->tableWidget->setItem(i, j, six);
            j++;

            QTableWidgetItem *seven = new QTableWidgetItem(QString::number(myList.at(i).getWidth()));
            ui->tableWidget->setItem(i, j, seven);
            j++;

            QTableWidgetItem *eight = new QTableWidgetItem(QString::number(myList.at(i).getHeight()));
            ui->tableWidget->setItem(i, j, eight);
            j++;

            QTableWidgetItem *nine = new QTableWidgetItem(QString::number(myList.at(i).getLength()));
            ui->tableWidget->setItem(i, j, nine);
            j++;

            QTableWidgetItem *ten = new QTableWidgetItem(QString::number(myList.at(i).getPrice()));
            ui->tableWidget->setItem(i, j, ten);
            j++;

        }

        //Назначение новой активной вкладки

        ui->tabWidget->setCurrentIndex(1);
}