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    QGroupBox *groupBoxChoiceRegion = new QGroupBox(dialog);
    groupBoxChoiceRegion->setTitle("Выбор региона:");
    groupBoxChoiceRegion->setObjectName("groupBoxChoiceRegion");

    QGridLayout *gridLayoutChoiceRegion = new QGridLayout(groupBoxChoiceRegion);
    gridLayoutChoiceRegion->setObjectName("gridLayoutChoiceRegion");
    gridLayoutChoiceRegion->setSizeConstraint(QLayout::SetFixedSize);

    QGroupBox *groupBoxChoiceRegion = dialog->findChild<QGroupBox *>("groupBoxChoiceRegion");
    groupBoxChoiceRegion->show();

    QGridLayout *gridLayoutChoiceRegion = dialog->findChild<QGridLayout *>("gridLayoutChoiceRegion");

    QObjectList childrensGroupBoxChoiceRegion = groupBoxChoiceRegion->children();
    foreach (QObject *object, childrensGroupBoxChoiceRegion) {
        if (object->objectName() != "gridLayoutChoiceRegion") {
            QPushButton *pushButton = qobject_cast<QPushButton*>(object);
            pushButton->deleteLater();
        }
    }

    int columnCount = 5;
    for (int i = 0, row = 0, column = 0; i < cities.count(); i++) {
        City city = cities.at(i);
        QPushButton *pushButton = new QPushButton(city.region, groupBoxChoiceRegion);
        if (i%columnCount == 0 && i != 0) {
            row += 1;
            column += columnCount;
        }
        gridLayoutChoiceRegion->addWidget(pushButton, row, i - column);
    }

    QObjectList childrensGroupBoxChoiceRegion = groupBoxChoiceRegion->children();
    qDebug() << endl << "childrensGroupBoxChoiceRegion" << childrensGroupBoxChoiceRegion;
    if (childrensGroupBoxChoiceRegion.count()-1 > 0) {
        QObject *object = childrensGroupBoxChoiceRegion.at(1);
        QPushButton *pushButton = qobject_cast<QPushButton*>(object);
        qDebug() << endl << "pushButton->text()" << pushButton->text();

        if (!cities.isEmpty()) {
            City city = cities.at(0);
            qDebug() << "city.region" << city.region;
            if (pushButton->text() != city.region) {
                foreach (QObject *object, childrensGroupBoxChoiceRegion) {
                    if (object->objectName() != "gridLayoutChoiceRegion") {
                        QPushButton *pushButton = qobject_cast<QPushButton*>(object);
                        pushButton->deleteLater();
                    }
                }
                qDebug() << endl << "childrensGroupBoxChoiceRegion deleteLater()" << childrensGroupBoxChoiceRegion;

                int columnCount = 5;
                for (int i = 0, row = 0, column = 0; i < cities.count(); i++) {
                    City city = cities.at(i);
                    QPushButton *pushButton = new QPushButton(city.region, groupBoxChoiceRegion);
                    //connect(pushButton, SIGNAL(clicked()), this, SLOT(selectRegion()));
                    //gridLayoutChoiceRegion->addWidget(pushButton);
                    if (i%columnCount == 0 && i != 0) {
                        row += 1;
                        column += columnCount;
                    }
                    gridLayoutChoiceRegion->addWidget(pushButton, row, i - column);
                }
                qDebug() << endl << "groupBoxChoiceRegion posle" << groupBoxChoiceRegion->children();
            }
        } else {
            foreach (QObject *object, childrensGroupBoxChoiceRegion) {
                if (object->objectName() != "gridLayoutChoiceRegion") {
                    QPushButton *pushButton = qobject_cast<QPushButton*>(object);
                    pushButton->deleteLater();
                }
            }
            qDebug() << endl << "childrensGroupBoxChoiceRegion deleteLater()" << childrensGroupBoxChoiceRegion;
        }
    } else {
        int columnCount = 5;
        for (int i = 0, row = 0, column = 0; i < cities.count(); i++) {
            City city = cities.at(i);
            QPushButton *pushButton = new QPushButton(city.region, groupBoxChoiceRegion);
            //connect(pushButton, SIGNAL(clicked()), this, SLOT(selectRegion()));
            //gridLayoutChoiceRegion->addWidget(pushButton);
            if (i%columnCount == 0 && i != 0) {
                row += 1;
                column += columnCount;
            }
            gridLayoutChoiceRegion->addWidget(pushButton, row, i - column);
        }
        qDebug() << endl << "groupBoxChoiceRegion posle" << groupBoxChoiceRegion->children();
    }

    QPushButton *pushButton = qobject_cast<QPushButton*>(object);
pushButton->deleteLater();