- Qt 6.9
- Qt XML
- C++ Classes
- QDomDocumentFragment
- Qt 6.9.3 Reference Documentation

# QDomDocumentFragment Class

The QDomDocumentFragment class is a tree of QDomNodes which is not usually a complete QDomDocument. More...

Header: | `#include <QDomDocumentFragment>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Xml)` `target_link_libraries(mytarget PRIVATE Qt6::Xml)`
qmake: | `QT += xml`
Inherits: | QDomNode

- List of all members, including inherited members
- QDomDocumentFragment is part of XML Classes.

Note: All functions in this class are reentrant.

## Public Functions

| QDomDocumentFragment()
| QDomDocumentFragment(const QDomDocumentFragment &documentFragment)
QDomNode::NodeType | nodeType() const
QDomDocumentFragment & | operator=(const QDomDocumentFragment &other)

## Detailed Description

If you want to do complex tree operations it is useful to have a lightweight class to store nodes and their relations. QDomDocumentFragment stores a subtree of a document which does not necessarily represent a well-formed XML document.

QDomDocumentFragment is also useful if you want to group several nodes in a list and insert them all together as children of some node. In these cases QDomDocumentFragment can be used as a temporary container for this list of children.

The most important feature of QDomDocumentFragment is that it is treated in a special way by QDomNode::insertAfter(), QDomNode::insertBefore(), QDomNode::replaceChild() and QDomNode::appendChild(): instead of inserting the fragment itself, all the fragment's children are inserted.

## Member Function Documentation

### QDomDocumentFragment::QDomDocumentFragment()

Constructs an empty document fragment.

### QDomDocumentFragment::QDomDocumentFragment(const QDomDocumentFragment &documentFragment)

Constructs a copy of documentFragment.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

### QDomNode::NodeType QDomDocumentFragment::nodeType() const

Returns `DocumentFragment`.

See also isDocumentFragment() and QDomNode::toDocumentFragment().

### QDomDocumentFragment &QDomDocumentFragment::operator=(const QDomDocumentFragment &other)

Assigns other to this DOM document fragment.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().