mx.collections.HierarchicalData (Flex 3)

	Propriedade	Definido por
		childrenField : String Indicates the field name to be used to detect children objects in a data item.	HierarchicalData
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object
		source : Object The source collection.	HierarchicalData

Métodos Públicos

	Método		Definido por
		HierarchicalData(value:Object = null) Constructor	HierarchicalData
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.	EventDispatcher
		canHaveChildren(node:Object):Boolean Returns true if the node can contain children.	HierarchicalData
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		getChildren(node:Object):Object Returns an Object representing the node's children.	HierarchicalData
		getData(node:Object):Object Returns data from a node.	HierarchicalData
		getNodeDepth(node:Object):int Returns the depth of the node in the collection.	HierarchicalData
		getParent(node:Object):* Returns the parent of a node.	HierarchicalData
		getRoot():Object Returns the root data item.	HierarchicalData
		hasChildren(node:Object):Boolean Returns true if the node has children.	HierarchicalData
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		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
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

	Evento	Descrição	Definido por
		activate	Dispatched when Flash Player or the and AIR application gains operating system focus and becomes active.	EventDispatcher
		deactivate	Dispatched when Flash Player loses operating system focus and is becoming inactive.	EventDispatcher

Detalhes da propriedade

childrenField

propriedade

childrenField:String [read-write]

Indicates the field name to be used to detect children objects in a data item. By default, all subnodes are considered as children for XML data, and the children property is used for the Object data type. This is helpful in adapting to a data format that uses custom data fields to represent children.

Implementação
public function get childrenField():String
public function set childrenField(value:String):void

source

propriedade

source:Object [read-write]

The source collection. The collection should implement the IList interface to facilitate operation like the addition and removal of items.

Implementação
public function get source():Object
public function set source(value:Object):void

Veja também

mx.collections.IList

Detalhes do construtor

HierarchicalData

()

Construtor

public function HierarchicalData(value:Object = null)

Constructor

Parâmetros

value:Object (default = null) — The data used to populate the HierarchicalData instance.

Detalhes do método

canHaveChildren

()

método

public function canHaveChildren(node:Object):Boolean

Returns true if the node can contain children.

Nodes do not have to contain children for the method to return true. This method is useful in determining whether other nodes can be appended as children to the specified node.

Parâmetros

node:Object — The Object that defines the node.

Retorna

Boolean — true if the node can contain children.

getChildren

()

método

public function getChildren(node:Object):Object

Returns an Object representing the node's children.

Parâmetros

node:Object — The Object that defines the node. If null, return a collection of top-level nodes.

Retorna

Object — An Object containing the children nodes.

getData

()

método

public function getData(node:Object):Object

Returns data from a node.

Parâmetros

node:Object — The node Object from which to get the data.

Retorna

Object — The requested data.

getNodeDepth

()

método

public function getNodeDepth(node:Object):int

Returns the depth of the node in the collection.

Parâmetros

node:Object — The Object that defines the node.

Retorna

int — The depth of the node.

getParent

()

método

public function getParent(node:Object):*

Returns the parent of a node. The parent of a top-level node is null.

Parâmetros

node:Object — The Object that defines the node.

Retorna

* — The parent node containing the node as child, null for a top-level node, and undefined if the parent cannot be determined.

getRoot

()

método

public function getRoot():Object

Returns the root data item.

Retorna

Object — The Object containing the root data item.

hasChildren

()

método

public function hasChildren(node:Object):Boolean

Returns true if the node has children.

Parâmetros

node:Object — The Object that defines the node.

Retorna

Boolean — true if the node has children.

Flex 3 - Referência da Linguagem	All Packages \| All Classes \| Language Elements \| Index \| Appendixes \| Conventions \| Frames No Frames
HierarchicalData	Propriedades \| Métodos \| Eventos

Pacote	mx.collections
Classe	public class HierarchicalData
Herança	HierarchicalData EventDispatcher Object
Implementa	IHierarchicalData
Subclasses	GroupingCollection