QAbstractTableModel Class Reference
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QtCore

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The QAbstractTableModel class provides an abstract model that can be subclassed to create table models. 更多...

方法

__init__ ( self , QObject parent = None)
bool dropMimeData ( self , QMimeData data , Qt.DropAction action , int row , int column , QModelIndex parent )
QModelIndex index ( self , int row , int column , QModelIndex parent = QModelIndex())

详细描述

The QAbstractTableModel class provides an abstract model that can be subclassed to create table models.

QAbstractTableModel provides a standard interface for models that represent their data as a two-dimensional array of items. It is not used directly, but must be subclassed.

Since the model provides a more specialized interface than QAbstractItemModel , it is not suitable for use with tree views, although it can be used to provide data to a QListView . If you need to represent a simple list of items, and only need a model to contain a single column of data, subclassing the QAbstractListModel may be more appropriate.

rowCount () and columnCount () functions return the dimensions of the table. To retrieve a model index corresponding to an item in the model, use index () and provide only the row and column numbers.

子类化

When subclassing QAbstractTableModel, you must implement rowCount (), columnCount ()，和 data (). Default implementations of the index () 和 parent () functions are provided by QAbstractTableModel. Well behaved models will also implement headerData ().

Editable models need to implement setData (), and implement flags () to return a value containing Qt.ItemIsEditable .

Models that provide interfaces to resizable data structures can provide implementations of insertRows (), removeRows (), insertColumns ()，和 removeColumns (). When implementing these functions, it is important to call the appropriate functions so that all connected views are aware of any changes:

An insertRows () implementation must call beginInsertRows () before inserting new rows into the data structure, and it must call endInsertRows () immediately afterwards .
An insertColumns () implementation must call beginInsertColumns () before inserting new columns into the data structure, and it must call endInsertColumns () immediately afterwards .
A removeRows () implementation must call beginRemoveRows () before the rows are removed from the data structure, and it must call endRemoveRows () immediately afterwards .
A removeColumns () implementation must call beginRemoveColumns () before the columns are removed from the data structure, and it must call endRemoveColumns () immediately afterwards .

注意： Some general guidelines for subclassing models are available in the Model Subclassing Reference .

注意：

方法文档编制

QAbstractTableModel.init ( self , QObject parent = None)

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

Constructs an abstract table model for the given parent .

bool QAbstractTableModel.dropMimeData ( self , QMimeData data , Qt.DropAction action , int row , int column , QModelIndex parent )

重实现自 QAbstractItemModel.dropMimeData ().

QModelIndex QAbstractTableModel.index ( self , int row , int column , QModelIndex parent = QModelIndex())

重实现自 QAbstractItemModel.index ().

Returns the index of the data in row and column with parent .

另请参阅 parent ().

QAbstractTableModel Class Reference [ QtCore module]

方法