Compatibility Members for QAbstractItemModel

The following members of class QAbstractItemModelare part of the Qt compatibility layer. We advise against using them in new code.

Public Functions

void setSupportedDragActions(Qt::DropActions actions)

Protected Functions

void reset()
void setRoleNames(const QHash<int, QByteArray> & roleNames)

Member Function Documentation

void QAbstractItemModel::reset() [protected]

Resets the model to its original state in any attached views.

This function emits the signals modelAboutToBeReset() and modelReset().

Note: Use beginResetModel() and endResetModel() instead whenever possible. Use this method only if there is no way to call beginResetModel() before invalidating the model. Otherwise it could lead to unexpected behaviour, especially when used with proxy models.

For example, in this code both signals modelAboutToBeReset() and modelReset() are emitted after the data changes:

myData.clear();
reset();

Instead you should use:

beginResetModel();
myData.clear();
endResetModel();

void QAbstractItemModel::setRoleNames(const QHash<int, QByteArray> & roleNames) [protected]

This function is obsolete. Reimplement roleNames() instead.

Sets the model's role names to roleNames.

This function allows mapping of role identifiers to role property names in scripting languages.

This function was introduced in Qt 4.6.

See also roleNames().

void QAbstractItemModel::setSupportedDragActions(Qt::DropActions actions)

This function is obsolete. Reimplement supportedDragActions() instead.

Sets the supported drag actions for the items in the model.

This function was introduced in Qt 4.2.

See also supportedDragActions() and Using drag and drop with item views.

Notes provided by the Qt Community

No notes