QSqlRelationalDelegate Class▲
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Header: QSqlRelationalDelegate
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qmake: QT += sql
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Inherits: QItemDelegate
Detailed Description▲
Unlike the default delegate, QSqlRelationalDelegate provides a combobox for fields that are foreign keys into other tables. To use the class, simply call QAbstractItemView::setItemDelegate() on the view with an instance of QSqlRelationalDelegate:
QTableView *view = new QTableView;
view->setModel(model);
view->setItemDelegate(new QSqlRelationalDelegate(view));The Relational Table Model example (shown below) illustrates how to use QSqlRelationalDelegate in conjunction with QSqlRelationalTableModel to provide tables with foreign key support.
See Also▲
Member Function Documentation▲
[explicit] QSqlRelationalDelegate::QSqlRelationalDelegate(QObject *parent = nullptr)▲
Constructs a QSqlRelationalDelegate object with the given parent.
[virtual] QSqlRelationalDelegate::~QSqlRelationalDelegate()▲
Destroys the QSqlRelationalDelegate object and frees any allocated resources.
[override virtual] QWidget *QSqlRelationalDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const▲
Reimplements: QItemDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const.