内容

• 公共函数
• 详细描述

QXmlAttributes 类

The QXmlAttributes class provides XML attributes. 更多...

头：	#include <QXmlAttributes>
qmake:	QT += xml

• 所有成员列表，包括继承成员

注意： 此类的所有函数 可重入 .

公共函数

	QXmlAttributes ()
virtual	~QXmlAttributes ()
void	append (const QString & qName , const QString & uri , const QString & localPart , const QString & value )
void	clear ()
int	count () const
int	index (const QString & qName ) const
int	index (QLatin1String qName ) const
int	index (const QString & uri , const QString & localPart ) const
int	length () const
QString	localName (int index ) const
QString	qName (int index ) const
void	swap (QXmlAttributes & other )
QString	type (int index ) const
QString	type (const QString & qName ) const
QString	type (const QString & uri , const QString & localName ) const
QString	uri (int index ) const
QString	value (int index ) const
QString	value (const QString & qName ) const
QString	value (QLatin1String qName ) const
QString	value (const QString & uri , const QString & localName ) const

详细描述

The QXmlAttributes class provides XML attributes.

If attributes are reported by QXmlContentHandler::startElement () this class is used to pass the attribute values.

使用 index () to locate the position of an attribute in the list, count () to retrieve the number of attributes, and clear () to remove the attributes. New attributes can be added with append ()。使用 type () to get an attribute's type and value () to get its value. The attribute's name is available from localName () 或 qName (), and its namespace URI from uri ().

成员函数文档编制

QXmlAttributes:: QXmlAttributes ()

Constructs an empty attribute list.

[虚拟] QXmlAttributes:: ~QXmlAttributes ()

Destroys the attributes object.

void QXmlAttributes:: append (const QString & qName , const QString & uri , const QString & localPart , const QString & value )

Appends a new attribute entry to the list of attributes. The qualified name of the attribute is qName , the namespace URI is uri and the local name is localPart . The value of the attribute is value .

另请参阅 qName (), uri (), localName ()，和 value ().

void QXmlAttributes:: clear ()

Clears the list of attributes.

另请参阅 append ().

int QXmlAttributes:: count () const

Returns the number of attributes in the list. This function is equivalent to length ().

int QXmlAttributes:: index (const QString & qName ) const

Looks up the index of an attribute by the qualified name qName .

Returns the index of the attribute or -1 if it wasn't found.

另请参阅 Namespace Support via Features .

int QXmlAttributes:: index ( QLatin1String qName ) const

这是重载函数。

int QXmlAttributes:: index (const QString & uri , const QString & localPart ) const

这是重载函数。

Looks up the index of an attribute by a namespace name.

uri specifies the namespace URI, or an empty string if the name has no namespace URI. localPart specifies the attribute's local name.

Returns the index of the attribute, or -1 if it wasn't found.

另请参阅 Namespace Support via Features .

int QXmlAttributes:: length () const

Returns the number of attributes in the list.

另请参阅 count ().

QString QXmlAttributes:: localName ( int index ) const

Looks up an attribute's local name for the attribute at position index . If no namespace processing is done, the local name is an empty string.

另请参阅 Namespace Support via Features .

QString QXmlAttributes:: qName ( int index ) const

Looks up an attribute's XML 1.0 qualified name for the attribute at position index .

另请参阅 Namespace Support via Features .

void QXmlAttributes:: swap ( QXmlAttributes & other )

QString QXmlAttributes:: type ( int index ) const

Looks up an attribute's type for the attribute at position index .

Currently only "CDATA" is returned.

QString QXmlAttributes:: type (const QString & qName ) const

这是重载函数。

Looks up an attribute's type for the qualified name qName .

Currently only "CDATA" is returned.

QString QXmlAttributes:: type (const QString & uri , const QString & localName ) const

这是重载函数。

Looks up an attribute's type by namespace name.

uri specifies the namespace URI and localName specifies the local name. If the name has no namespace URI, use an empty string for uri .

Currently only "CDATA" is returned.

QString QXmlAttributes:: uri ( int index ) const

Looks up an attribute's namespace URI for the attribute at position index . If no namespace processing is done or if the attribute has no namespace, the namespace URI is an empty string.

另请参阅 Namespace Support via Features .

QString QXmlAttributes:: value ( int index ) const

Returns an attribute's value for the attribute at position index . The index must be a valid position (i.e., 0 <= index < count ()).

QString QXmlAttributes:: value (const QString & qName ) const

这是重载函数。

Returns an attribute's value for the qualified name qName , or an empty string if no attribute exists for the name given.

另请参阅 Namespace Support via Features .

QString QXmlAttributes:: value ( QLatin1String qName ) const

这是重载函数。

Returns an attribute's value for the qualified name qName , or an empty string if no attribute exists for the name given.

另请参阅 Namespace Support via Features .

QString QXmlAttributes:: value (const QString & uri , const QString & localName ) const

这是重载函数。

Returns an attribute's value by namespace name.

uri specifies the namespace URI, or an empty string if the name has no namespace URI. localName specifies the attribute's local name.