[Qt] Как задать обязательное поле в созданном через графический интерфейс QWizard`e?

 ClassInfoPage::ClassInfoPage(QWidget *parent)
     : QWizardPage(parent)
 {
     ...
     classNameLabel = new QLabel(tr("&Class name:"));
     classNameLineEdit = new QLineEdit;
     classNameLabel->setBuddy(classNameLineEdit);

     baseClassLabel = new QLabel(tr("B&ase class:"));
     baseClassLineEdit = new QLineEdit;
     baseClassLabel->setBuddy(baseClassLineEdit);

     qobjectMacroCheckBox = new QCheckBox(tr("Generate Q_OBJECT &macro"));

     registerField("className*", classNameLineEdit);
     registerField("baseClass", baseClassLineEdit);
     registerField("qobjectMacro", qobjectMacroCheckBox);
     ...
 }

this->page(0)->registerField("name*",m_ui->ltermname);