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QDomNodeList Class

发布于 2019-10-04 14:59:53 字数 2908 浏览 1474 评论 0 收藏 0

The QDomNodeList class is a list of QDomNode objects. More...

#include <qdom.h>

List of all member functions.

Public Members

  • QDomNodeList ()
  • QDomNodeList ( constQDomNodeList&n )
  • QDomNodeList & operator= ( constQDomNodeList&n )
  • bool operator== ( constQDomNodeList&n ) const
  • bool operator!= ( constQDomNodeList&n ) const
  • virtual ~QDomNodeList ()
  • virtual QDomNode item ( intindex ) const
  • virtual uint length () const
  • uint count () const

Detailed Description

The QDomNodeList class is a list of QDomNode objects.

Lists can be obtained by QDomDocument::elementsByTagName() and QDomNode::childNodes(). The Document Object Model (DOM) requires these lists to be "live": whenever you change the underlying document, the contents of the list will get updated.

You can get a particular node from the list with item(). The number of items in the list is returned by count() (and by length()).

For further information about the Document Object Model see http://www.w3.org/TR/REC-DOM-Level-1/ and http://www.w3.org/TR/DOM-Level-2-Core/. For a more general introduction of the DOM implementation see the QDomDocument documentation.

See also QDomNode::childNodes(), QDomDocument::elementsByTagName() and XML.


Member Function Documentation

QDomNodeList::QDomNodeList ()

Creates an empty node list.

QDomNodeList::QDomNodeList ( constQDomNodeList&n )

Constructs a copy of n.

QDomNodeList::~QDomNodeList () [virtual]

Destroys the object and frees its resources.

uint QDomNodeList::count () const

Returns the number of nodes in the list.

This function is the same as length().

QDomNode QDomNodeList::item ( intindex ) const [virtual]

Returns the node at position index.

If index is negative or if index >= length() then a null node is returned (i.e. a node for which QDomNode::isNull() returns TRUE).

See also count().

uint QDomNodeList::length () const [virtual]

Returns the number of nodes in the list.

This function is the same as count().

bool QDomNodeList::operator!= ( constQDomNodeList&n ) const

Returns TRUE the node list n and this node list are not equal; otherwise returns FALSE.

QDomNodeList& QDomNodeList::operator= ( constQDomNodeList&n )

Assigns n to this node list.

bool QDomNodeList::operator== ( constQDomNodeList&n ) const

Returns TRUE if the node list n and this node list are equal; otherwise returns FALSE.

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