# QDomNodeList Class Reference

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

` #include <QDomNodeList>`

**Note:** All functions in this class are reentrant.

## Public Functions

QDomNodeList () | |

QDomNodeList ( const QDomNodeList & n ) | |

~QDomNodeList () | |

QDomNode | at ( int index ) const |

int | count () const |

bool | isEmpty () const |

QDomNode | item ( int index ) const |

uint | length () const |

int | size () const |

bool | operator!= ( const QDomNodeList & n ) const |

QDomNodeList & | operator= ( const QDomNodeList & n ) |

bool | operator== ( const QDomNodeList & n ) 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 length().

For further information about the Document Object Model see Level 1 and Level 2 Core. For a more general introduction of the DOM implementation see the QDomDocument documentation.

**See also **QDomNode::childNodes() and QDomDocument::elementsByTagName().

## Member Function Documentation

### QDomNodeList::QDomNodeList ()

Creates an empty node list.

### QDomNodeList::QDomNodeList ( const QDomNodeList & *n* )

Constructs a copy of *n*.

### QDomNodeList::~QDomNodeList ()

Destroys the object and frees its resources.

### QDomNode QDomNodeList::at ( int *index* ) const

This function is provided for Qt API consistency. It is equivalent to item().

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

### int QDomNodeList::count () const

This function is provided for Qt API consistency. It is equivalent to length().

### bool QDomNodeList::isEmpty () const

Returns true if the list contains no items; otherwise returns false. This function is provided for Qt API consistency.

### QDomNode QDomNodeList::item ( int *index* ) const

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 **length().

### uint QDomNodeList::length () const

Returns the number of nodes in the list.

### int QDomNodeList::size () const

This function is provided for Qt API consistency. It is equivalent to length().

### bool QDomNodeList::operator!= ( const QDomNodeList & *n* ) const

Returns true the node list *n* and this node list are not equal; otherwise returns false.

### QDomNodeList & QDomNodeList::operator= ( const QDomNodeList & *n* )

Assigns *n* to this node list.

### bool QDomNodeList::operator== ( const QDomNodeList & *n* ) const

Returns true if the node list *n* and this node list are equal; otherwise returns false.

## No notes