QSqlRelationalDelegate Class
The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel. More...
| Header: | #include <QSqlRelationalDelegate> |
| qmake: | QT += sql |
| Inherits: | QItemDelegate. |
Public Functions
| QSqlRelationalDelegate(QObject * parent = 0) | |
| ~QSqlRelationalDelegate() |
Reimplemented Public Functions
| virtual QWidget * | createEditor(QWidget * parent, const QStyleOptionViewItem & option, const QModelIndex & index) const |
| virtual void | setModelData(QWidget * editor, QAbstractItemModel * model, const QModelIndex & index) const |
- 10 public functions inherited from QItemDelegate
- 9 public functions inherited from QAbstractItemDelegate
- 31 public functions inherited from QObject
Additional Inherited Members
- 1 property inherited from QItemDelegate
- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 3 signals inherited from QAbstractItemDelegate
- 2 signals inherited from QObject
- 11 static public members inherited from QObject
- 7 protected functions inherited from QItemDelegate
- 9 protected functions inherited from QObject
Detailed Description
The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel.
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 QSqlRelationalTableModel and Model/View Programming.
Member Function Documentation
QSqlRelationalDelegate::QSqlRelationalDelegate(QObject * parent = 0)
Constructs a QSqlRelationalDelegate object with the given parent.
QSqlRelationalDelegate::~QSqlRelationalDelegate()
Destroys the QSqlRelationalDelegate object and frees any allocated resources.
[virtual] QWidget * QSqlRelationalDelegate::createEditor(QWidget * parent, const QStyleOptionViewItem & option, const QModelIndex & index) const
Reimplemented from QAbstractItemDelegate::createEditor().
[virtual] void QSqlRelationalDelegate::setModelData(QWidget * editor, QAbstractItemModel * model, const QModelIndex & index) const
Reimplemented from QAbstractItemDelegate::setModelData().
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