XML

Package	Top Level
Class	public final dynamic class XML
Inheritance	XML Object

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9, Flash Lite 4

The XML class contains methods and properties for working with XML objects. The XML class (along with the XMLList, Namespace, and QName classes) implements the powerful XML-handling standards defined in ECMAScript for XML (E4X) specification (ECMA-357 edition 2).

Use the toXMLString() method to return a string representation of the XML object regardless of whether the XML object has simple content or complex content.

Note: The XML class (along with related classes) from ActionScript 2.0 has been renamed XMLDocument and moved into the flash.xml package. It is included in ActionScript 3.0 for backward compatibility.

View the examples

More examples

Initializing XML variables
Assembling and transforming XML objects
Traversing XML structures
Using XML namespaces
XML type conversion
Converting XML and XMLList objects to strings
Reading external XML documents
XML in ActionScript example: Loading RSS data from the Internet

Learn more

Hierarchical data objects
Working with XML
Basics of XML
The E4X approach to XML processing
XML objects
ECMAScript for XML (E4X) specification (ECMA-357 edition 2)

Related API Elements

Namespace
QName
XMLList
XML.toXMLString()

Public Properties

Hide Inherited Public Properties

Show Inherited Public Properties

	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		ignoreComments : Boolean [static] Determines whether XML comments are ignored when XML objects parse the source XML data.	XML
		ignoreProcessingInstructions : Boolean [static] Determines whether XML processing instructions are ignored when XML objects parse the source XML data.	XML
		ignoreWhitespace : Boolean [static] Determines whether white space characters at the beginning and end of text nodes are ignored during parsing.	XML
		prettyIndent : int [static] Determines the amount of indentation applied by the toString() and toXMLString() methods when the XML.prettyPrinting property is set to true.	XML
		prettyPrinting : Boolean [static] Determines whether the toString() and toXMLString() methods normalize white space characters between some tags.	XML

Public Methods

Hide Inherited Public Methods

Show Inherited Public Methods

	Method		Defined By
		XML(value:Object) Creates a new XML object.	XML
		addNamespace(ns:Object):XML Adds a namespace to the set of in-scope namespaces for the XML object.	XML
		appendChild(child:Object):XML Appends the given child to the end of the XML object's properties.	XML
		attribute(attributeName:*):XMLList Returns the XML value of the attribute that has the name matching the attributeName parameter.	XML
		attributes():XMLList Returns a list of attribute values for the given XML object.	XML
		child(propertyName:Object):XMLList Lists the children of an XML object.	XML
		childIndex():int Identifies the zero-indexed position of this XML object within the context of its parent.	XML
		children():XMLList Lists the children of the XML object in the sequence in which they appear.	XML
		comments():XMLList Lists the properties of the XML object that contain XML comments.	XML
		contains(value:XML):Boolean Compares the XML object against the given value parameter.	XML
		copy():XML Returns a copy of the given XML object.	XML
		defaultSettings():Object [static] Returns an object with the following properties set to the default values: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting.	XML
		descendants(name:Object = *):XMLList Returns all descendants (children, grandchildren, great-grandchildren, and so on) of the XML object that have the given name parameter.	XML
		elements(name:Object = *):XMLList Lists the elements of an XML object.	XML
		hasComplexContent():Boolean Checks to see whether the XML object contains complex content.	XML
		hasOwnProperty(p:String):Boolean Checks to see whether the object has the property specified by the p parameter.	XML
		hasSimpleContent():Boolean Checks to see whether the XML object contains simple content.	XML
		inScopeNamespaces():Array Lists the namespaces for the XML object, based on the object's parent.	XML
		insertChildAfter(child1:Object, child2:Object):* Inserts the given child2 parameter after the child1 parameter in this XML object and returns the resulting object.	XML
		insertChildBefore(child1:Object, child2:Object):* Inserts the given child2 parameter before the child1 parameter in this XML object and returns the resulting object.	XML
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		length():int For XML objects, this method always returns the integer 1.	XML
		localName():Object Gives the local name portion of the qualified name of the XML object.	XML
		name():Object Gives the qualified name for the XML object.	XML
		namespace(prefix:String = null):* If no parameter is provided, gives the namespace associated with the qualified name of this XML object.	XML
		namespaceDeclarations():Array Lists namespace declarations associated with the XML object in the context of its parent.	XML
		nodeKind():String Specifies the type of node: text, comment, processing-instruction, attribute, or element.	XML
		normalize():XML For the XML object and all descendant XML objects, merges adjacent text nodes and eliminates empty text nodes.	XML
		parent():* Returns the parent of the XML object.	XML
		prependChild(value:Object):XML Inserts a copy of the provided child object into the XML element before any existing XML properties for that element.	XML
		processingInstructions(name:String = "*"):XMLList If a name parameter is provided, lists all the children of the XML object that contain processing instructions with that name.	XML
		propertyIsEnumerable(p:String):Boolean Checks whether the property p is in the set of properties that can be iterated in a for..in statement applied to the XML object.	XML
		removeNamespace(ns:Namespace):XML Removes the given namespace for this object and all descendants.	XML
		replace(propertyName:Object, value:XML):XML Replaces the properties specified by the propertyName parameter with the given value parameter.	XML
		setChildren(value:Object):XML Replaces the child properties of the XML object with the specified set of XML properties, provided in the value parameter.	XML
		setLocalName(name:String):void Changes the local name of the XML object to the given name parameter.	XML
		setName(name:String):void Sets the name of the XML object to the given qualified name or attribute name.	XML
		setNamespace(ns:Namespace):void Sets the namespace associated with the XML object.	XML
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		setSettings(... rest):void [static] Sets values for the following XML properties: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting.	XML
		settings():Object [static] Retrieves the following properties: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting.	XML
		text():XMLList Returns an XMLList object of all XML properties of the XML object that represent XML text nodes.	XML
		toJSON(k:String):* Provides an overridable method for customizing the JSON encoding of values in an XML object.	XML
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns a string representation of the XML object.	XML
		toXMLString():String Returns a string representation of the XML object.	XML
		valueOf():XML Returns the XML object.	XML

Property Detail

ignoreComments

property

ignoreComments:Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Determines whether XML comments are ignored when XML objects parse the source XML data. By default, the comments are ignored (true). To include XML comments, set this property to false. The ignoreComments property is used only during the XML parsing, not during the call to any method such as myXMLObject.child(*).toXMLString(). If the source XML includes comment nodes, they are kept or discarded during the XML parsing.

Implementation
public static function get ignoreComments():Boolean
public static function set ignoreComments(value:Boolean):void

Related API Elements

XML.child()
XML.toXMLString()

Example ( How to use this example )

This example shows the effect of setting XML.ignoreComments to false and to true:

Copy

XML.ignoreComments = false;
var xml1:XML = 
        <foo>
            <!-- comment -->
        </foo>;
trace(xml1.toXMLString()); // <foo><!-- comment --></foo>

XML.ignoreComments = true;
var xml2:XML = 
        <foo>
            <!-- example -->
        </foo>;
trace(xml2.toXMLString()); // <foo/>

ignoreProcessingInstructions

property

ignoreProcessingInstructions:Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Determines whether XML processing instructions are ignored when XML objects parse the source XML data. By default, the processing instructions are ignored (true). To include XML processing instructions, set this property to false. The ignoreProcessingInstructions property is used only during the XML parsing, not during the call to any method such as myXMLObject.child(*).toXMLString(). If the source XML includes processing instructions nodes, they are kept or discarded during the XML parsing.

Implementation
public static function get ignoreProcessingInstructions():Boolean
public static function set ignoreProcessingInstructions(value:Boolean):void

Related API Elements

XML.child()
XML.toXMLString()

Example ( How to use this example )

This example shows the effect of setting XML.ignoreProcessingInstructions to false and to true:

Copy

XML.ignoreProcessingInstructions = false;
var xml1:XML = 
        <foo>
            <?exampleInstruction ?>
        </foo>;
trace(xml1.toXMLString()); // <foo><?exampleInstruction ?></foo>

XML.ignoreProcessingInstructions = true;
var xml2:XML = 
        <foo>
            <?exampleInstruction ?>
        </foo>;
trace(xml2.toXMLString()); // <foo/>

ignoreWhitespace

property

ignoreWhitespace:Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Determines whether white space characters at the beginning and end of text nodes are ignored during parsing. By default, white space is ignored (true). If a text node is 100% white space and the ignoreWhitespace property is set to true, then the node is not created. To show white space in a text node, set the ignoreWhitespace property to false.

When you create an XML object, it caches the current value of the ignoreWhitespace property. Changing the ignoreWhitespace does not change the behavior of existing XML objects.

Implementation
public static function get ignoreWhitespace():Boolean
public static function set ignoreWhitespace(value:Boolean):void

Example ( How to use this example )

This example shows the effect of setting XML.ignoreWhitespace to false and to true:

Copy

XML.ignoreWhitespace = false;
var xml1:XML = <foo>    </foo>;
trace(xml1.children().length()); // 1

XML.ignoreWhitespace = true;
var xml2:XML = <foo>    </foo>;
trace(xml2.children().length()); // 0

prettyIndent

property

prettyIndent:int

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Determines the amount of indentation applied by the toString() and toXMLString() methods when the XML.prettyPrinting property is set to true. Indentation is applied with the space character, not the tab character. The default value is 2.

Implementation
public static function get prettyIndent():int
public static function set prettyIndent(value:int):void

Related API Elements

prettyPrinting
toString()
toXMLString()

Example ( How to use this example )

This example shows the effect of setting the XML.prettyIndent static property:

Copy

var xml:XML = <foo><bar/></foo>;
XML.prettyIndent = 0;
trace(xml.toXMLString());

XML.prettyIndent = 1;
trace(xml.toXMLString());

XML.prettyIndent = 2;
trace(xml.toXMLString());

prettyPrinting

property

prettyPrinting:Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Determines whether the toString() and toXMLString() methods normalize white space characters between some tags. The default value is true.

Implementation
public static function get prettyPrinting():Boolean
public static function set prettyPrinting(value:Boolean):void

Related API Elements

prettyIndent
toString()
toXMLString()

Example ( How to use this example )

This example shows the effect of setting XML.prettyPrinting static property:

Copy

var xml:XML = <foo><bar/></foo>;
XML.prettyPrinting = false;
trace(xml.toXMLString());

XML.prettyPrinting = true;
trace(xml.toXMLString());

Constructor Detail

()

Constructor

public function XML(value:Object)

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Creates a new XML object. You must use the constructor to create an XML object before you call any of the methods of the XML class.

Use the toXMLString() method to return a string representation of the XML object regardless of whether the XML object has simple content or complex content.

Parameters

value:Object — Any object that can be converted to XML with the top-level XML() function.

Learn more

XML objects

Related API Elements

XML() global function
XML.toXMLString()

Example ( How to use this example )

The following example shows how you can load a remote XML document in ActionScript 3.0 using the URLLoader class in Flash Professional. Example provided by ActionScriptExamples.com.

Copy

//
// Requires:
//   - TextArea control UI component in the Flash Professional Library.
//
import fl.controls.TextArea;
 
var xml:XML;
 
var urlRequest:URLRequest = new URLRequest("http://www.helpexamples.com/flash/xml/menu.xml");
 
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, urlLoader_complete);
urlLoader.load(urlRequest);
 
var textArea:TextArea = new TextArea();
textArea.move(5, 5);
textArea.setSize(stage.stageWidth - 10, stage.stageHeight - 10);
addChild(textArea);
 
function urlLoader_complete(evt:Event):void {
    xml = new XML(evt.currentTarget.data);
    textArea.text = xml.toXMLString();
}

Here's another variation using all ActionScript. Example provided by ActionScriptExamples.com.

Copy

var xml:XML;
var textArea:TextField = new TextField();
textArea.width = 300;
 
var urlRequest:URLRequest = new URLRequest("http://www.helpexamples.com/flash/xml/menu.xml");
var urlLoader:URLLoader = new URLLoader();
urlLoader.dataFormat = URLLoaderDataFormat.TEXT;
urlLoader.addEventListener(Event.COMPLETE, urlLoader_complete);
urlLoader.load(urlRequest);
 
function urlLoader_complete(evt:Event):void {
    xml = new XML(evt.target.data);
    textArea.text = xml.toXMLString();
    addChild(textArea);
}

Method Detail

addNamespace

()

method

AS3 function addNamespace(ns:Object):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Adds a namespace to the set of in-scope namespaces for the XML object. If the namespace already exists in the in-scope namespaces for the XML object (with a prefix matching that of the given parameter), then the prefix of the existing namespace is set to undefined. If the input parameter is a Namespace object, it's used directly. If it's a QName object, the input parameter's URI is used to create a new namespace; otherwise, it's converted to a String and a namespace is created from the String.

Parameters

ns:Object — The namespace to add to the XML object.

Returns

XML — The new XML object, with the namespace added.

Learn more

XML objects

Example ( How to use this example )

This example uses a namespace defined in one XML object and applies it to another XML object:

Copy

var xml1:XML = <ns:foo xmlns:ns="www.example.com/ns" />;
var nsNamespace:Namespace = xml1.namespace();

var xml2:XML = <bar />;
xml2.addNamespace(nsNamespace);
trace(xml2.toXMLString()); // <bar xmlns:ns="www.example.com/ns"/>

appendChild

()

method

AS3 function appendChild(child:Object):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Appends the given child to the end of the XML object's properties. The appendChild() method takes an XML object, an XMLList object, or any other data type that is then converted to a String.

Use the delete (XML) operator to remove XML nodes.

Parameters

child:Object — The XML object to append.

Returns

XML — The resulting XML object.

More examples

Assembling and transforming XML objects

Learn more

The E4X approach to XML processing
XML objects

Related API Elements

delete (XML) operator

Example ( How to use this example )

This example appends a new element to the end of the child list of an XML object:

Copy

var xml:XML = 
        <body>
            <p>hello</p>
        </body>;
        
xml.appendChild(<p>world</p>);    
trace(xml.p[0].toXMLString()); // <p>hello</p>
trace(xml.p[1].toXMLString()); // <p>world</p>

attribute

()

method

AS3 function attribute(attributeName:*):XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns the XML value of the attribute that has the name matching the attributeName parameter. Attributes are found within XML elements. In the following example, the element has an attribute named "gender" with the value "boy": <first gender="boy">John</first>.

The attributeName parameter can be any data type; however, String is the most common data type to use. When passing any object other than a QName object, the attributeName parameter uses the toString() method to convert the parameter to a string.

If you need a qualified name reference, you can pass in a QName object. A QName object defines a namespace and the local name, which you can use to define the qualified name of an attribute. Therefore calling attribute(qname) is not the same as calling attribute(qname.toString()).

Parameters

attributeName:* — The name of the attribute.

Returns

XMLList — An XMLList object or an empty XMLList object. Returns an empty XMLList object when an attribute value has not been defined.

More examples

Traversing XML structures

Learn more

XML objects

Related API Elements

XML.attributes()
QName
Namespace
XML.elements()
attribute identifier (@) operator

Example ( How to use this example )

This example shows a QName object passed into the attribute() method. The localName property is attr and the namespace property is ns.

Copy

 var xml:XML = <ns:node xmlns:ns = "http://uri" ns:attr = '7' />       
 var qn:QName = new QName("http://uri", "attr");
 trace (xml.attribute(qn)); // 7

To return an attribute with a name that matches an ActionScript reserved word, use the attribute() method instead of the attribute identifier (@) operator, as in the following example:

Copy

 var xml:XML = <example class="first" />
 trace(xml.attribute("class"));

attributes

()

method

AS3 function attributes():XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns a list of attribute values for the given XML object. Use the name() method with the attributes() method to return the name of an attribute. Use of xml.attributes() is equivalent to xml.@*.

Returns

XMLList — The list of attribute values.

More examples

Traversing XML structures

Learn more

XML objects

Related API Elements

XML.attribute()
XML.name()
@ operator

Example ( How to use this example )

The following example returns the name of the attribute:

Copy

var xml:XML=<example id='123' color='blue'/>
trace(xml.attributes()[1].name()); //color

This example returns the names of all the attributes:

Copy

 
var xml:XML = <example id='123' color='blue'/>
var attNamesList:XMLList = xml.@*;

trace (attNamesList is XMLList); // true
trace (attNamesList.length()); // 2

for (var i:int = 0; i < attNamesList.length(); i++)
{ 
    trace (typeof (attNamesList[i])); // xml
    trace (attNamesList[i].nodeKind()); // attribute
    trace (attNamesList[i].name()); // id and color
}

child

()

method

AS3 function child(propertyName:Object):XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists the children of an XML object. An XML child is an XML element, text node, comment, or processing instruction.

Use the propertyName parameter to list the contents of a specific XML child. For example, to return the contents of a child named <first>, call child("first") on the XML object. You can generate the same result by using the child's index number. The index number identifies the child's position in the list of other XML children. For example, child(0) returns the first child in a list.

Use an asterisk (*) to output all the children in an XML document. For example, doc.child("*").

Use the length() method with the asterisk (*) parameter of the child() method to output the total number of children. For example, numChildren = doc.child("*").length().

Parameters

propertyName:Object — The element name or integer of the XML child.

Returns

XMLList — An XMLList object of child nodes that match the input parameter.

More examples

Traversing XML structures

Learn more

XML objects

Related API Elements

XML.elements()
XMLList class
XML.length()

Example ( How to use this example )

This example shows the use of the child() method to identify child elements with a specified name:

Copy

var xml:XML = 
        <foo>
            <bar>text1</bar>
            <bar>text2</bar>
        </foo>;
trace(xml.child("bar").length());  // 2
trace(xml.child("bar")[0].toXMLString()); // <bar>text1</bar>
trace(xml.child("bar")[1].toXMLString()); // <bar>text2</bar>

childIndex

()

method

AS3 function childIndex():int

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Identifies the zero-indexed position of this XML object within the context of its parent.

Returns

int — The position of the object. Returns -1 as well as positive integers.

Learn more

XML objects

Example ( How to use this example )

This example shows the use of the childIndex() method:

Copy

var xml:XML = 
            <foo>
                <bar />
                text
                <bob />
            </foo>;
trace(xml.bar.childIndex()); // 0
trace(xml.bob.childIndex()); // 2

children

()

method

AS3 function children():XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists the children of the XML object in the sequence in which they appear. An XML child is an XML element, text node, comment, or processing instruction.

Returns

XMLList — An XMLList object of the XML object's children.

Learn more

XML objects

Example ( How to use this example )

This example shows the use of the children() method:

Copy

XML.ignoreComments = false;
XML.ignoreProcessingInstructions = false;
var xml:XML = 
        <foo id="22">
            <bar>44</bar>
            text
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml.children().length()); // 4
trace(xml.children()[0].toXMLString()); // <bar>44</bar>
trace(xml.children()[1].toXMLString()); // text
trace(xml.children()[2].toXMLString()); // <!-- comment -->
trace(xml.children()[3].toXMLString()); // <?instruction ?>

comments

()

method

AS3 function comments():XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists the properties of the XML object that contain XML comments.

Returns

XMLList — An XMLList object of the properties that contain comments.

Learn more

XML objects

Example ( How to use this example )

This example shows the use of the comments() method:

Copy

XML.ignoreComments = false;
var xml:XML = 
        <foo>
            <!-- example -->
            <!-- example2 -->
        </foo>;
trace(xml.comments().length()); // 2
trace(xml.comments()[1].toXMLString()); // <!-- example2 -->

contains

()

method

AS3 function contains(value:XML):Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Compares the XML object against the given value parameter.

Parameters

value:XML — A value to compare against the current XML object.

Returns

Boolean — If the XML object matches the value parameter, then true; otherwise false.

Learn more

XML objects

Example ( How to use this example )

This example shows the use of the contains() method:

Copy

var xml:XML = 
        <order>
            <item>Rice</item>
            <item>Kung Pao Shrimp</item>
        </order>;
trace(xml.item[0].contains(<item>Rice</item>)); // true
trace(xml.item[1].contains(<item>Kung Pao Shrimp</item>)); // true
trace(xml.item[1].contains(<item>MSG</item>)); // false

copy

()

method

AS3 function copy():XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns a copy of the given XML object. The copy is a duplicate of the entire tree of nodes. The copied XML object has no parent and returns null if you attempt to call the parent() method.

Returns

XML — The copy of the object.

Learn more

XML objects

Example ( How to use this example )

This example shows that the copy() method creates a new instance of an XML object. When you modify the copy, the original remains unchanged:

Copy

var xml1:XML = <foo />;
var xml2:XML = xml1.copy();
xml2.appendChild(<bar />);
trace(xml1.bar.length()); // 0
trace(xml2.bar.length()); // 1

defaultSettings

()

method

AS3 static function defaultSettings():Object

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns an object with the following properties set to the default values: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting. The default values are as follows:

ignoreComments = true
ignoreProcessingInstructions = true
ignoreWhitespace = true
prettyIndent = 2
prettyPrinting = true

Note: You do not apply this method to an instance of the XML class; you apply it to XML, as in the following code: var df:Object = XML.defaultSettings().

Returns

Object — An object with properties set to the default settings.

Learn more

XML objects

Related API Elements

XML.ignoreComments
XML.ignoreProcessingInstructions
XML.ignoreWhitespace
XML.prettyIndent
XML.prettyPrinting
XML.setSettings()
XML.settings()

Example ( How to use this example )

The following example shows: how to apply some custom settings (for including comments and processing instructions) prior to setting an XML object; how to then revert back to the default settings before setting another XML object; and then how to set the custom settings again (for setting any more XML objects):

Copy

XML.ignoreComments = false;
XML.ignoreProcessingInstructions = false;
var customSettings:Object = XML.settings();

var xml1:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml1.toXMLString());
//    <foo>
//        <!-- comment -->
//         <?instruction ?>
//    </foo>

XML.setSettings(XML.defaultSettings());
var xml2:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml2.toXMLString());

descendants

()

method

AS3 function descendants(name:Object = *):XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns all descendants (children, grandchildren, great-grandchildren, and so on) of the XML object that have the given name parameter. The name parameter is optional. The name parameter can be a QName object, a String data type or any other data type that is then converted to a String data type.

To return all descendants, use the "*" parameter. If no parameter is passed, the string "*" is passed and returns all descendants of the XML object.

Parameters

name:Object (default = *) — The name of the element to match.

Returns

XMLList — An XMLList object of matching descendants. If there are no descendants, returns an empty XMLList object.

Related API Elements

descendant accessor (..) operator

Example ( How to use this example )

To return descendants with names that match ActionScript reserved words, use the descendants() method instead of the descendant (..) operator, as in the following example:

Copy

var xml:XML = 
  <enrollees>
    <student id="239">
        <class name="Algebra" />
        <class name="Spanish 2"/>
    </student>
    <student id="206">
        <class name="Trigonometry" />
        <class name="Spanish 2" />
    </student>
  </enrollees>
trace(xml.descendants("class"));

The following example shows that the descendants() method returns an XMLList object that contains all descendant objects, including children, grandchildren, and so on:

Copy

XML.ignoreComments = false;
var xml:XML = 
        <body>
            <!-- comment -->
            text1
            <a>
                <b>text2</b>
            </a>
        </body>;
trace(xml.descendants("*").length()); // 5
trace(xml.descendants("*")[0]); // // <!-- comment -->
trace(xml.descendants("*")[1].toXMLString()); // text1
trace(xml.descendants("a").toXMLString()); // <a><b>text2</b></a>
trace(xml.descendants("b").toXMLString()); // <b>text2</b>

elements

()

method

AS3 function elements(name:Object = *):XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists the elements of an XML object. An element consists of a start and an end tag; for example <first></first>. The name parameter is optional. The name parameter can be a QName object, a String data type, or any other data type that is then converted to a String data type. Use the name parameter to list a specific element. For example, the element "first" returns "John" in this example: <first>John</first>.

To list all elements, use the asterisk (*) as the parameter. The asterisk is also the default parameter.

Use the length() method with the asterisk parameter to output the total number of elements. For example, numElement = addressbook.elements("*").length().

Parameters

name:Object (default = *) — The name of the element. An element's name is surrounded by angle brackets. For example, "first" is the name in this example: <first></first>.

Returns

XMLList — An XMLList object of the element's content. The element's content falls between the start and end tags. If you use the asterisk (*) to call all elements, both the element's tags and content are returned.

Learn more

XML objects

Related API Elements

XML.child()
XMLList class
XML.length()
XML.attribute()
XML dot (.) operator

Example ( How to use this example )

The following example shows that the elements() method returns a list of elements only — not comments, text properties, or processing instructions:

Copy

var xml:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
            text
            <a>1</a>
            <b>2</b>
        </foo>;
trace(xml.elements("*").length()); // 2
trace(xml.elements("*")[0].toXMLString()); // <a>1</a>
trace(xml.elements("b").length()); // 1
trace(xml.elements("b")[0].toXMLString()); // <b>2</b>

To return elements with names that match ActionScript reserved words, use the elements() method instead of the XML dot (.) operator, as in the following example:

Copy

var xml:XML =
 <student id="206">
    <class name="Trigonometry" />
    <class name="Spanish 2" />
 </student>
trace(xml.elements("class"));

hasComplexContent

()

method

AS3 function hasComplexContent():Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Checks to see whether the XML object contains complex content. An XML object contains complex content if it has child elements. XML objects that representing attributes, comments, processing instructions, and text nodes do not have complex content. However, an object that contains these can still be considered to contain complex content (if the object has child elements).

Returns

Boolean — If the XML object contains complex content, true; otherwise false.

Learn more

XML objects

Related API Elements

XML.hasSimpleContent()

Example ( How to use this example )

The following example shows an XML object with one property named a that has simple content and one property named a that has complex content:

Copy

var xml:XML = 
        <foo>
            <a>
                text
            </a>
            <a>
                <b/>
            </a>
        </foo>;
trace(xml.a[0].hasComplexContent()); // false
trace(xml.a[1].hasComplexContent()); // true

trace(xml.a[0].hasSimpleContent()); // true
trace(xml.a[1].hasSimpleContent()); // false

hasOwnProperty

()

method

AS3 function hasOwnProperty(p:String):Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Checks to see whether the object has the property specified by the p parameter.

Parameters

p:String — The property to match.

Returns

Boolean — If the property exists, true; otherwise false.

Learn more

XML objects

Example ( How to use this example )

The following example uses the hasOwnProperty() method to ensure that a property (b) exists prior to evaluating an expression (b == "11") that uses the property:

Copy

var xml:XML = 
        <foo>
            <a />
            <a>
                <b>10</b>
            </a>
            <a>
                <b>11</b>
            </a>
        </foo>;
trace(xml.a.(hasOwnProperty("b") && b == "11"));

If the last line in this example were the following, Flash Player would throw an exception since the first element named a does not have a property named b:

trace(xml.a.(b == "11"));

The following example uses the hasOwnProperty() method to ensure that a property (item) exists prior to evaluating an expression (item.contains("toothbrush")) that uses the property:

Copy

var xml:XML = 
        <orders>
            <order id='1'>
                <item>toothbrush</item>
                <item>toothpaste</item>
            </order>
            <order>
                <returnItem>shoe polish</returnItem>
            </order>
        </orders>;
trace(xml.order.(hasOwnProperty("item") && item.contains("toothbrush")));

hasSimpleContent

()

method

AS3 function hasSimpleContent():Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Checks to see whether the XML object contains simple content. An XML object contains simple content if it represents a text node, an attribute node, or an XML element that has no child elements. XML objects that represent comments and processing instructions do not contain simple content.

Returns

Boolean — If the XML object contains simple content, true; otherwise false.

Learn more

XML objects

Related API Elements

XML.hasComplexContent()

Example ( How to use this example )

The following example shows an XML object with one property named a that has simple content and one property named a that has complex content:

Copy

var xml:XML = 
        <foo>
            <a>
                text
            </a>
            <a>
                <b/>
            </a>
        </foo>;
trace(xml.a[0].hasComplexContent()); // false
trace(xml.a[1].hasComplexContent()); // true

trace(xml.a[0].hasSimpleContent()); // true
trace(xml.a[1].hasSimpleContent()); // false

inScopeNamespaces

()

method

AS3 function inScopeNamespaces():Array

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists the namespaces for the XML object, based on the object's parent.

Returns

Array — An array of Namespace objects.

Learn more

XML objects

insertChildAfter

()

method

AS3 function insertChildAfter(child1:Object, child2:Object):*

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Inserts the given child2 parameter after the child1 parameter in this XML object and returns the resulting object. If the child1 parameter is null, the method inserts the contents of child2 before all children of the XML object (in other words, after none). If child1 is provided, but it does not exist in the XML object, the XML object is not modified and undefined is returned.

If you call this method on an XML child that is not an element (text, attributes, comments, pi, and so on) undefined is returned.

Use the delete (XML) operator to remove XML nodes.

Parameters

	`child1:Object` — The object in the source object that you insert before `child2`.

	`child2:Object` — The object to insert.

Returns

* — The resulting XML object or undefined.

More examples

Assembling and transforming XML objects

Learn more

XML objects

Related API Elements

XML.insertChildBefore()
delete (XML) operator

Example ( How to use this example )

The following example appends an element to the end of the child elements of an XML object:

Copy

var xml:XML = 
        <menu>
            <item>burger</item>
            <item>soda</item>
        </menu>;
xml.insertChildAfter(xml.item[0], <saleItem>fries</saleItem>);
trace(xml);

The trace() output is the following:

 <menu>
     <item>burger</item>
     <saleItem>fries</saleItem>
     <item>soda</item>
 </menu>

insertChildBefore

()

method

AS3 function insertChildBefore(child1:Object, child2:Object):*

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Inserts the given child2 parameter before the child1 parameter in this XML object and returns the resulting object. If the child1 parameter is null, the method inserts the contents of child2 after all children of the XML object (in other words, before none). If child1 is provided, but it does not exist in the XML object, the XML object is not modified and undefined is returned.

If you call this method on an XML child that is not an element (text, attributes, comments, pi, and so on) undefined is returned.

Use the delete (XML) operator to remove XML nodes.

Parameters

	`child1:Object` — The object in the source object that you insert after `child2`.

	`child2:Object` — The object to insert.

Returns

* — The resulting XML object or undefined.

More examples

Assembling and transforming XML objects

Learn more

XML objects

Related API Elements

XML.insertChildAfter()
delete (XML) operator

Example ( How to use this example )

The following example appends an element to the end of the child elements of an XML object:

Copy

var xml:XML = 
        <menu>
            <item>burger</item>
            <item>soda</item>
        </menu>;
xml.insertChildBefore(xml.item[0], <saleItem>fries</saleItem>);
trace(xml);

The trace() output is the following:

 <menu>
     <saleItem>fries</saleItem>
     <item>burger</item>
     <item>soda</item>
 </menu>

length

()

method

AS3 function length():int

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

For XML objects, this method always returns the integer 1. The length() method of the XMLList class returns a value of 1 for an XMLList object that contains only one value.

Returns

int — Always returns 1 for any XML object.

Learn more

XML objects

localName

()

method

AS3 function localName():Object

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Gives the local name portion of the qualified name of the XML object.

Returns

Object — The local name as either a String or null.

Learn more

XML objects

Example ( How to use this example )

The following example illustrates the use of the localName() method:

Copy

var xml:XML = 
        <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
            soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">

                        <soap:Body xmlns:wx = "http://example.com/weather">
                <wx:forecast>
                    <wx:city>Quito</wx:city>
                </wx:forecast>
            </soap:Body>
        </soap:Envelope>;
        
trace(xml.localName()); // Envelope

name

()

method

AS3 function name():Object

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Gives the qualified name for the XML object.

Returns

Object — The qualified name is either a QName or null.

Learn more

XML objects

Related API Elements

XML.attributes()
attribute identifier

Example ( How to use this example )

The following example illustrates the use of the name() method to get the qualified name of an XML object:

Copy

var xml:XML = 
        <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
            soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">

                        <soap:Body xmlns:wx = "http://example.com/weather">
                <wx:forecast>
                    <wx:city>Quito</wx:city>
                </wx:forecast>
            </soap:Body>
        </soap:Envelope>;
        
trace(xml.name().localName); // Envelope
trace(xml.name().uri); // "http://www.w3.org/2001/12/soap-envelope"

The following example illustrates the use of the name() method called on an XML property, on a text element, and on an attribute:

Copy

var xml:XML = 
        <foo x="15" y="22">
            text
        </foo>;
        
trace(xml.name().localName); // foo
trace(xml.name().uri == ""); // true
trace(xml.children()[0]); // text
trace(xml.children()[0].name()); // null
trace(xml.attributes()[0]); // 15
trace(xml.attributes()[0].name()); // x

namespace

()

method

AS3 function namespace(prefix:String = null):*

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

If no parameter is provided, gives the namespace associated with the qualified name of this XML object. If a prefix parameter is specified, the method returns the namespace that matches the prefix parameter and that is in scope for the XML object. If there is no such namespace, the method returns undefined.

Parameters

prefix:String (default = null) — The prefix you want to match.

Returns

* — Returns null, undefined, or a namespace.

Learn more

XML objects

Example ( How to use this example )

The following example uses the namespace() method to get the namespace of an XML object and assign it to a Namespace object named soap which is then used in identifying a property of the xml object (xml.soap::Body[0]):

Copy

var xml:XML = 
        <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
            soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">

                        <soap:Body xmlns:wx = "http://example.com/weather">
                <wx:forecast>
                    <wx:city>Quito</wx:city>
                </wx:forecast>
            </soap:Body>
        </soap:Envelope>;
        
var soap:Namespace = xml.namespace();
trace(soap.prefix); // soap
trace(soap.uri); // http://www.w3.org/2001/12/soap-envelope

var body:XML = xml.soap::Body[0];
trace(body.namespace().prefix); // soap
trace(xml.namespace().uri); // http://www.w3.org/2001/12/soap-envelope
trace(body.namespace("wx").uri); // "http://example.com/weather"

The following example uses the namespace() method to get the default namespace for a node, as well as the namespace for a specific prefix ("dc"):

Copy

var xml:XML = 
        <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
            xmlns:dc="http://purl.org/dc/elements/1.1/" 
            xmlns="http://purl.org/rss/1.0/">
                <!-- ... -->
        </rdf:RDF>;
                    
trace(xml.namespace()); // http://www.w3.org/1999/02/22-rdf-syntax-ns#
trace(xml.namespace("dc")); // http://purl.org/dc/elements/1.1/
trace(xml.namespace("foo")); // undefined

namespaceDeclarations

()

method

AS3 function namespaceDeclarations():Array

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Lists namespace declarations associated with the XML object in the context of its parent.

Returns

Array — An array of Namespace objects.

Learn more

XML objects

Related API Elements

XML.namespace()

Example ( How to use this example )

The following example outputs the namespace declarations of an XML object:

Copy

var xml:XML = 
        <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
            xmlns:dc="http://purl.org/dc/elements/1.1/" 
            xmlns="http://purl.org/rss/1.0/">

            <!-- ... -->
            
        </rdf:RDF>;
                    
for (var i:uint = 0; i < xml.namespaceDeclarations().length; i++) {
    var ns:Namespace = xml.namespaceDeclarations()[i]; 
    var prefix:String = ns.prefix;
    if (prefix == "") {
        prefix = "(default)";
    }
    trace(prefix + ":" , ns.uri);
}

The trace() output is the following:

rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
 dc: http://purl.org/dc/elements/1.1/
 (default): http://purl.org/rss/1.0/

nodeKind

()

method

AS3 function nodeKind():String

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Specifies the type of node: text, comment, processing-instruction, attribute, or element.

Returns

String — The node type used.

Learn more

XML objects

Related API Elements

attribute identifier

Example ( How to use this example )

This example traces all five node types:

Copy

XML.ignoreComments = false;
XML.ignoreProcessingInstructions = false;

var xml:XML = 
    <example id="10">
        <!-- this is a comment -->
        <?test this is a pi ?>
        and some text
    </example>;

trace(xml.nodeKind()); // element
trace(xml.children()[0].nodeKind()); // comment
trace(xml.children()[1].nodeKind()); // processing-instruction
trace(xml.children()[2].nodeKind()); // text
trace(xml.@id[0].nodeKind()); // attribute

normalize

()

method

AS3 function normalize():XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

For the XML object and all descendant XML objects, merges adjacent text nodes and eliminates empty text nodes.

Returns

XML — The resulting normalized XML object.

Learn more

XML objects

Example ( How to use this example )

The following example shows the effect of calling the normalize() method:

Copy

var xml:XML = <body></body>;
xml.appendChild("hello");
xml.appendChild(" world");
trace(xml.children().length()); // 2
xml.normalize();
trace(xml.children().length()); // 1

parent

()

method

AS3 function parent():*

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns the parent of the XML object. If the XML object has no parent, the method returns undefined.

Returns

* — Either an XML reference of the parent node, or undefined if the XML object has no parent.

More examples

Traversing XML structures

Learn more

XML objects

Example ( How to use this example )

The following example uses the parent() method to identify the parent element of a specific element in an XML structure:

Copy

var xml:XML = 
    <body>
        <p id="p1">Hello</p>
        <p id="p2">Test:
            <ul>
                <li>1</li>
                <li>2</li>
            </ul>
        </p>
    </body>;
var node:XML = xml.p.ul.(li.contains("1"))[0]; // == <ul> ... </ul>
trace(node.parent().@id); // p2

prependChild

()

method

AS3 function prependChild(value:Object):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Inserts a copy of the provided child object into the XML element before any existing XML properties for that element.

Use the delete (XML) operator to remove XML nodes.

Parameters

value:Object — The object to insert.

Returns

XML — The resulting XML object.

More examples

Assembling and transforming XML objects

Learn more

XML objects

Related API Elements

delete (XML) operator

Example ( How to use this example )

The following example uses the prependChild() method to add an element to the begining of a child list of an XML object:

Copy

var xml:XML = 
        <body>
            <p>hello</p>
        </body>;
        
xml.prependChild(<p>world</p>);    
trace(xml.p[0].toXMLString()); // <p>world</p>
trace(xml.p[1].toXMLString()); // <p>hello</p>

processingInstructions

()

method

AS3 function processingInstructions(name:String = "*"):XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

If a name parameter is provided, lists all the children of the XML object that contain processing instructions with that name. With no parameters, the method lists all the children of the XML object that contain any processing instructions.

Parameters

name:String (default = "*") — The name of the processing instructions to match.

Returns

XMLList — A list of matching child objects.

Learn more

XML objects

Example ( How to use this example )

The following example uses the processingInstructions() method to get an array of processing instructions for an XML object:

Copy

XML.ignoreProcessingInstructions = false;
var xml:XML =
    <body>
            foo
            <?xml-stylesheet href="headlines.css" type="text/css" ?>
            <?instructionX ?>
            
    </body>;

trace(xml.processingInstructions().length()); // 2
trace(xml.processingInstructions()[0].name()); // xml-stylesheet

propertyIsEnumerable

()

method

AS3 function propertyIsEnumerable(p:String):Boolean

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Checks whether the property p is in the set of properties that can be iterated in a for..in statement applied to the XML object. Returns true only if toString(p) == "0".

Parameters

p:String — The property that you want to check.

Returns

Boolean — If the property can be iterated in a for..in statement, true; otherwise, false.

Learn more

XML objects

Example ( How to use this example )

The following example shows that, for an XML object, the propertyNameIsEnumerable() method returns a value of true only for the value 0; whereas for an XMLList object, the return value is true for each valid index value for the XMLList object:

Copy

var xml:XML = 
        <body>
             <p>Hello</p>
               <p>World</p>
        </body>;

trace(xml.propertyIsEnumerable(0)); // true
trace(xml.propertyIsEnumerable(1)); // false

for (var propertyName:String in xml) {
    trace(xml[propertyName]);
}

var list:XMLList = xml.p;
trace(list.propertyIsEnumerable(0)); // true
trace(list.propertyIsEnumerable(1)); // true
trace(list.propertyIsEnumerable(2)); // false

for (var propertyName:String in list) { 
    trace(list[propertyName]);
}

removeNamespace

()

method

AS3 function removeNamespace(ns:Namespace):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Removes the given namespace for this object and all descendants. The removeNamespaces() method does not remove a namespace if it is referenced by the object's qualified name or the qualified name of the object's attributes.

Parameters

ns:Namespace — The namespace to remove.

Returns

XML — A copy of the resulting XML object.

Learn more

XML objects

Example ( How to use this example )

The following example shows how to remove a namespace declaration from an XML object:

Copy

var xml:XML = 
    <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
        xmlns:dc="http://purl.org/dc/elements/1.1/" 
        xmlns="http://purl.org/rss/1.0/">
    
        <!-- ... -->
        
    </rdf:RDF>;

trace(xml.namespaceDeclarations().length); // 3
trace(xml.namespaceDeclarations()[0] is String); // 
var dc:Namespace = xml.namespace("dc");
xml.removeNamespace(dc);
trace(xml.namespaceDeclarations().length); // 2

replace

()

method

AS3 function replace(propertyName:Object, value:XML):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Replaces the properties specified by the propertyName parameter with the given value parameter. If no properties match propertyName, the XML object is left unmodified.

Parameters

	`propertyName:Object` — Can be a numeric value, an unqualified name for a set of XML elements, a qualified name for a set of XML elements, or the asterisk wildcard ("*"). Use an unqualified name to identify XML elements in the default namespace.

	`value:XML` — The replacement value. This can be an XML object, an XMLList object, or any value that can be converted with `toString()`.

Returns

XML — The resulting XML object, with the matching properties replaced.

Learn more

XML objects

Example ( How to use this example )

The following example illustrates calling the replace() method with an integer as the first parameter:

Copy

var xml:XML = 
    <body>
        <p>Hello</p>
        <p>World</p>
        <hr/>
    </body>;

xml.replace(1, <p>Bob</p>);
trace(xml);

This results in the following trace() output:


 <body>
     <p>Hello</p>
     <p>Bob</p>
     <hr/>
 </body>

The following example calls replace() method with a string as the first parameter:

Copy

var xml:XML = 
    <body>
        <p>Hello</p>
        <p>World</p>
        <hr/>
    </body>;

xml.replace("p", <p>Hi</p>); 
trace(xml);

This results in the following trace() output:


 <body>
     <p>Hi</p>
     <hr/>
 </body>;

The following example illustrates calling the replace() method with a QName as the first parameter:

Copy

var xml:XML = 
    <ns:body xmlns:ns = "myNS">
        <ns:p>Hello</ns:p>
        <ns:p>World</ns:p>
        <hr/>
    </ns:body>;

var qname:QName = new QName("myNS", "p");
xml.replace(qname, <p>Bob</p>);
trace(xml);

This results in the following trace() output:


 <ns:body xmlns:ns = "myNS">
     <p>Bob</p>
     <hr/>
 </ns:body>

The following example illustrates calling the replace() method with the string "*" as the first parameter:

Copy

var xml:XML = 
    <body>
        <p>Hello</p>
        <p>World</p>
        <hr/>
    </body>;

xml.replace("*", <img src = "hello.jpg"/>);
trace(xml);

This results in the following trace() output:


 <body>
     <img src="hello.jpg"/>
 </body>

setChildren

()

method

AS3 function setChildren(value:Object):XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Replaces the child properties of the XML object with the specified set of XML properties, provided in the value parameter.

Parameters

value:Object — The replacement XML properties. Can be a single XML object or an XMLList object.

Returns

XML — The resulting XML object.

Learn more

XML objects

Example ( How to use this example )

The following example illustrates calling the setChildren() method, first using an XML object as the parameter, and then using an XMLList object as the parameter:

Copy

var xml:XML = 
    <body>
        <p>Hello</p>
        <p>World</p>
    </body>;

var list:XMLList = xml.p;

xml.setChildren(<p>hello</p>);
trace(xml);

//    <body>
//        <p>hello</p>
//    </body>

xml.setChildren(list);
trace(xml);

//    <body>
//        <p>Hello</p>
//        <p>World</p>
//    </body>

setLocalName

()

method

AS3 function setLocalName(name:String):void

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Changes the local name of the XML object to the given name parameter.

Parameters

name:String — The replacement name for the local name.

Learn more

XML objects

Example ( How to use this example )

The following example uses the setLocalName() method to change the local name of an XML element:

Copy

var xml:XML = 
    <ns:item xmlns:ns="http://example.com">
        toothbrush
    </ns:item>;
    
xml.setLocalName("orderItem");
trace(xml.toXMLString()); // <ns:orderItem xmlns:ns="http://example.com">toothbrush</ns:orderItem>

setName

()

method

AS3 function setName(name:String):void

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Sets the name of the XML object to the given qualified name or attribute name.

Parameters

name:String — The new name for the object.

Learn more

XML objects

Example ( How to use this example )

The following example uses the setName() method to change the name of an XML element:

Copy

var xml:XML = 
    <item>
        toothbrush
    </item>;
    
xml.setName("orderItem");
trace(xml.toXMLString()); // <orderItem>toothbrush</orderItem>

setNamespace

()

method

AS3 function setNamespace(ns:Namespace):void

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Sets the namespace associated with the XML object.

Parameters

ns:Namespace — The new namespace.

Learn more

XML objects

Example ( How to use this example )

The following example uses the soap namespace defined in one XML object and applies it to the namespace of another XML object (xml2):

Copy

var xml1:XML = 
        <soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
            soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">
            <!-- ... -->
        </soap:Envelope>;
var ns:Namespace = xml1.namespace("soap");

var xml2:XML = 
    <Envelope>
        <Body/>
    </Envelope>;
    
xml2.setNamespace(ns);

trace(xml2);

setSettings

()

method

AS3 static function setSettings(... rest):void

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Sets values for the following XML properties: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting. The following are the default settings, which are applied if no setObj parameter is provided:

XML.ignoreComments = true
XML.ignoreProcessingInstructions = true
XML.ignoreWhitespace = true
XML.prettyIndent = 2
XML.prettyPrinting = true

Note: You do not apply this method to an instance of the XML class; you apply it to XML, as in the following code: XML.setSettings().

Parameters

... rest — An object with each of the following properties:

ignoreComments
ignoreProcessingInstructions
ignoreWhitespace
prettyIndent
prettyPrinting

Learn more

XML objects

Related API Elements

ignoreComments
ignoreProcessingInstructions
ignoreWhitespace
prettyIndent
prettyPrinting
defaultSettings()
settings()

Example ( How to use this example )

Copy

XML.ignoreComments = false;
XML.ignoreProcessingInstructions = false;
var customSettings:Object = XML.settings();

var xml1:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml1.toXMLString());
//    <foo>
//        <!-- comment -->
//         <?instruction ?>
//    </foo>

XML.setSettings(XML.defaultSettings());
var xml2:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml2.toXMLString());

settings

()

method

AS3 static function settings():Object

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Retrieves the following properties: ignoreComments, ignoreProcessingInstructions, ignoreWhitespace, prettyIndent, and prettyPrinting.

Returns

Object — An object with the following XML properties:

ignoreComments
ignoreProcessingInstructions
ignoreWhitespace
prettyIndent
prettyPrinting

Related API Elements

XML.ignoreComments
XML.ignoreProcessingInstructions
XML.ignoreWhitespace
XML.prettyIndent
XML.prettyPrinting
XML.defaultSettings()
XML.setSettings()

Example ( How to use this example )

Copy

XML.ignoreComments = false;
XML.ignoreProcessingInstructions = false;
var customSettings:Object = XML.settings();

var xml1:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml1.toXMLString());
//    <foo>
//        <!-- comment -->
//         <?instruction ?>
//    </foo>

XML.setSettings(XML.defaultSettings());
var xml2:XML = 
        <foo>
            <!-- comment -->
            <?instruction ?>
        </foo>;
trace(xml2.toXMLString());

text

()

method

AS3 function text():XMLList

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns an XMLList object of all XML properties of the XML object that represent XML text nodes.

Returns

XMLList — The list of properties.

Learn more

XML objects

Example ( How to use this example )

The following example uses the text() method to get the text nodes of an XML object:

Copy

var xml:XML =
        <body>
            text1
            <hr/>
            text2
        </body>;
trace(xml.text()[0]); // text1
trace(xml.text()[1]); // text2

toJSON

()

method

AS3 function toJSON(k:String):*

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11, AIR 3, Flash Lite 4

Provides an overridable method for customizing the JSON encoding of values in an XML object.

The JSON.stringify() method looks for a toJSON() method on each object that it traverses. If the toJSON() method is found, JSON.stringify() calls it for each value it encounters, passing in the key that is paired with the value.

XML provides a default implementation of toJSON() that simply returns the name of the class. Clients that wish to export XML objects to JSON must provide their own implementation. You can do this by redefining the toJSON() method on the class prototype.

The toJSON() method can return a value of any type. If it returns an object, stringify() recurses into that object. If toJSON() returns a string, stringify() does not recurse and continues its traversal.

Parameters

k:String — The key of a key/value pair that JSON.stringify() has encountered in its traversal of this object

Returns

* — The class name string.

Learn more

Overview of the JSON API

Related API Elements

Object
Object.prototype

toString

()

method

AS3 function toString():String

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns a string representation of the XML object. The rules for this conversion depend on whether the XML object has simple content or complex content:

If the XML object has simple content, toString() returns the String contents of the XML object with the following stripped out: the start tag, attributes, namespace declarations, and end tag.

If the XML object has complex content, toString() returns an XML encoded String representing the entire XML object, including the start tag, attributes, namespace declarations, and end tag.

To return the entire XML object every time, use toXMLString().

Returns

String — The string representation of the XML object.

More examples

XML type conversion

Related API Elements

XML.hasSimpleContent()
XML.hasComplexContent()
XML.toXMLString()

Example ( How to use this example )

The following example shows what the toString() method returns when the XML object has simple content:

Copy

var test:XML = <type name="Joe">example</type>;
trace(test.toString()); //example

The following example shows what the toString() method returns when the XML object has complex content:

Copy

var test:XML = 
<type name="Joe">
    <base name="Bob"></base>
    example
</type>;
trace(test.toString());
  // <type name="Joe">
  // <base name="Bob"/>
  // example
  // </type>

toXMLString

()

method

AS3 function toXMLString():String

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns a string representation of the XML object. Unlike the toString() method, the toXMLString() method always returns the start tag, attributes, and end tag of the XML object, regardless of whether the XML object has simple content or complex content. (The toString() method strips out these items for XML objects that contain simple content.)

Returns

String — The string representation of the XML object.

More examples

XML type conversion

Learn more

XML objects

Related API Elements

XML.toString()

Example ( How to use this example )

The following example shows the difference between using the toString() method (which is applied to all parameters of a trace() method, by default) and using the toXMLString() method:

Copy

var xml:XML =
        <p>hello</p>;
trace(xml); // hello
trace(xml.toXMLString()); // <p>hello</p>

valueOf

()

method

AS3 function valueOf():XML

Language Version:

ActionScript 3.0

Runtime Versions:

AIR 1.0, Flash Player 9

Returns the XML object.

Returns

XML — The primitive value of an XML instance.

Learn more

XML objects

Example ( How to use this example )

The following example shows that the value returned by the valueOf() method is the same as the source XML object:

Copy

var xml:XML = <p>hello</p>;
trace(xml.valueOf() === xml); // true

Examples How to use this example

XMLExample.as

The following example first creates an XML variable and adds nodes to it. Then XML properties are used to find and print XML nodes. Notice that the "at" (@) symbol is used in several of the trace() calls to locate information by attribute name.

Copy

package {
    import flash.display.Sprite;

    public class XmlExample extends Sprite {        
        public function XmlExample() {
            var employees:XML =
                <employees>
                    <employee ssn="123-123-1234">
                        <name first="John" last="Doe"/>
                        <address>
                            <street>11 Main St.</street>
                            <city>San Francisco</city>
                            <state>CA</state>
                            <zip>98765</zip>
                        </address>
                    </employee>
                    <employee ssn="789-789-7890">
                        <name first="Mary" last="Roe"/>
                        <address>
                            <street>99 Broad St.</street>
                            <city>Newton</city>
                            <state>MA</state>
                            <zip>01234</zip>
                        </address>
                    </employee>
                </employees>;

            trace(employees.employee[0].address.zip);   // 98765

            trace(employees.employee[1].@ssn);          // 789-789-7890

            trace(employees.employee.name);             // <name first="John" last="Doe"/>
                                                        // <name first="Mary" last="Roe"/>

            trace(employees..zip[0]);                   // 98765

            trace(employees..@ssn[1]);                  // 789-789-7890

            trace(employees..name);                     // <name first="John" last="Doe"/>
                                                        // <name first="Mary" last="Roe"/>

            trace(employees.employee[0].address.*);     // <street>11 Main St.</street>    
                                                        // <city>San Francisco</city>
                                                        // <state>CA</state>
                                                        // <zip>98765</zip>
            var node:String = "zip";
            trace(employees.employee[0].address[node]); // 98765
            
            var attribute:String = "ssn";
            trace(employees.employee[1].@[attribute]);  // 789-789-7890
            
            for each (var num:XML in employees..@ssn) {
                trace(num);                             // 123-123-1234
            }                                           // 789-789-7890
            
            var ssnToFind:String = "789-789-7890";
            trace(employees.employee.(@ssn == ssnToFind).toXMLString());
                                                        // <employee ssn="789-789-7890">
                                                        // <name first="Mary" last="Roe"/>
                                                        // <address>
                                                        // <street>99 Broad St.</street>
                                                        // <city>Newton</city>
                                                        // <state>MA</state>
                                                        // <zip>01234</zip>
                                                        // </address>
                                                        // </employee>
        }
    }
}

Top Level XML - AS3		Properties \| Properties \| Constructor \| Methods \| Global Constants \| Events \| Styles \| Skin Parts \| Skin States \| Effects \| Constants \| Global Functions \| Functions \| Interfaces \| Classes \| Examples

XML - AS3

Classes x

ignoreComments

ignoreProcessingInstructions

ignoreWhitespace

prettyIndent

prettyPrinting

XML

addNamespace

appendChild

attribute

attributes

child

childIndex

children

comments

contains

copy

defaultSettings

descendants

elements

hasComplexContent

hasOwnProperty

hasSimpleContent

inScopeNamespaces

insertChildAfter

insertChildBefore

length

localName

name

namespace

namespaceDeclarations

nodeKind

normalize

parent

prependChild

processingInstructions

propertyIsEnumerable

removeNamespace

replace

setChildren

setLocalName

setName

setNamespace

setSettings

settings

text

toJSON

toString

toXMLString

valueOf