QDomAttr露

PyQt5.QtXml.QDomAttr: Inherits from QDomNode.

Description露

The QDomAttr class represents one attribute of a QDomElement.

For example, the following piece of XML produces an element with no children, but two attributes:

# <link href="http://qt-project.org" color="red" />

You can access the attributes of an element with code like this:

# QDomElement e = //...
# //...
# QDomAttr a = e.attributeNode("href");
# cout << a.value() << endl;                // prints "http://qt-project.org"
# a.setValue("http://qt-project.org/doc"); // change the node's attribute
# QDomAttr a2 = e.attributeNode("href");
# cout << a2.value() << endl;               // prints "http://qt-project.org/doc"

This example also shows that changing an attribute received from an element changes the attribute of the element. If you do not want to change the value of the element鈥檚 attribute you must use cloneNode() to get an independent copy of the attribute.

QDomAttr can return the name() and value() of an attribute. An attribute鈥檚 value is set with setValue(). If specified() returns true the value was set with setValue(). The node this attribute is attached to (if any) is returned by ownerElement().

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.

Methods露

__init__(): Constructs an empty attribute.

__init__(QDomAttr)

Constructs a copy of x.

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().

name() → str: Returns the attribute鈥檚 name.

nodeType() → NodeType: TODO

ownerElement() → QDomElement: Returns the element node this attribute is attached to or a isNull() if this attribute is not attached to any element.

setValue(str): Sets the attribute鈥檚 value to v.

See also

value().

specified() → bool: Returns true if the attribute has been set by the user with setValue(). Returns false if the value hasn鈥檛 been specified or set.

See also

setValue().

value() → str: Returns the value of the attribute or an empty string if the attribute has not been specified.

See also

specified(), setValue().