QT insert widget inside an other widget

user_3276787 0
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I've created an UI with qt Creator,in this UI there is just a button and a widget (let's call it respectively button and char_container); I need to add a chartview programmatically inside the chart_container. I didn't change the default layout.

I've tried the following code,but it does not work:

void MainWindow::button_slot(){
    QtCharts::QChart *chart = new QtCharts::QChart();
    QtCharts::QChartView *chartView = new QtCharts::QChartView(chart);
    chartView->setParent(ui->chart_container);
    this.repaint();
}
qchart qt5 qwidget qt c++
1 Answers

The best way to add a widget inside another is to use a layout, as I show below:

//on constructor
ui->chart_container->setLayout(new QVBoxLayout);


void MainWindow::button_slot()
{
    QtCharts::QChart *chart = new QtCharts::QChart();
    QtCharts::QChartView *chartView = new QtCharts::QChartView(chart, ui->chart_container);
    ui->chart_container->layout()->addWidget(chartView);
}
user_66225870
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