Obsolete Members for QAbstractItemModel

The following members of class QAbstractItemModel are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.

公有函数

• 2 个公有函数继承自 QObject

Protected Functions

成员函数

[protected] void QAbstractItemModel::reset()

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();

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

This function is obsolete.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.

参见 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This function is obsolete.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.

参见 supportedDragActions() and Using drag and drop with item views.