KNS3::UploadDialog dialog("labplot2_datasets.knsrc", this);

    QFile file(m_jsonDir + "DatasetCategories_backup.json");
    qDebug() << "file exists: " << file.exists();
    qDebug() << "file can be opened: " << file.open(QIODevice::ReadOnly) << "  " << file.errorString();
    file.close();
    dialog.setUploadFile(m_jsonDir + "DatasetCategories_backup.json");
    qDebug("Upload file set!");
    dialog.setUploadName("Dataset Categories");
    qDebug() << "Upload name set!";

    dialog.exec();