QSqlRelationalDelegate Class Reference
The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel. More...
#include <QSqlRelationalDelegate>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 | setEditorData ( QWidget * editor, const QModelIndex & index ) const |
| virtual void | setModelData ( QWidget * editor, QAbstractItemModel * model, const QModelIndex & index ) const |
- 10 public functions inherited from QItemDelegate
- 7 public functions inherited from QAbstractItemDelegate
- 29 public functions inherited from QObject
Additional Inherited Members
- 1 property inherited from QItemDelegate
- 1 property inherited from QObject
- 1 public slot inherited from QAbstractItemDelegate
- 1 public slot inherited from QObject
- 3 signals inherited from QAbstractItemDelegate
- 1 signal inherited from QObject
- 7 static public members inherited from QObject
- 7 protected functions inherited from QItemDelegate
- 8 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.
QWidget * QSqlRelationalDelegate::createEditor ( QWidget * parent, const QStyleOptionViewItem & option, const QModelIndex & index ) const [virtual]
Reimplemented from QAbstractItemDelegate::createEditor().
void QSqlRelationalDelegate::setEditorData ( QWidget * editor, const QModelIndex & index ) const [virtual]
Reimplemented from QAbstractItemDelegate::setEditorData().
void QSqlRelationalDelegate::setModelData ( QWidget * editor, QAbstractItemModel * model, const QModelIndex & index ) const [virtual]
Reimplemented from QAbstractItemDelegate::setModelData().
No notes