QSqlRelationalDelegate Class Reference
^{^{[

QtSql

module]}}

The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a QSqlRelationalTableModel . 更多...

继承 QItemDelegate .

方法

__init__ ( self , QObject parent = None)
QWidget createEditor ( self , QWidget parent , QStyleOptionViewItem option , QModelIndex index )
setEditorData ( self , QWidget editor , QModelIndex index )
setModelData ( self , QWidget editor , QAbstractItemModel model , QModelIndex index )

详细描述

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));

Relational Table Model example (shown below) illustrates how to use QSqlRelationalDelegate in conjunction with QSqlRelationalTableModel to provide tables with foreign key support.

方法文档编制

QSqlRelationalDelegate.init ( self , QObject parent = None)

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

构造 QSqlRelationalDelegate object with the given parent .

QWidget QSqlRelationalDelegate.createEditor ( self , QWidget parent , QStyleOptionViewItem option , QModelIndex index )

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

重实现自 QAbstractItemDelegate.createEditor ().

QSqlRelationalDelegate.setEditorData ( self , QWidget editor , QModelIndex index )

重实现自 QAbstractItemDelegate.setEditorData ().

QSqlRelationalDelegate.setModelData ( self , QWidget editor , QAbstractItemModel model , QModelIndex index )

重实现自 QAbstractItemDelegate.setModelData ().

QSqlRelationalDelegate Class Reference [ QtSql module]

方法