ChildExistenceChangedEvent

Package	mx.events
Class	public class ChildExistenceChangedEvent
Inheritance	ChildExistenceChangedEvent Event Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Represents events that are dispatched when a the child of a control is created or destroyed.

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Manually dispatching events

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About Flex events

Public Properties

	Property		Defined By
		bubbles : Boolean [read-only] Indicates whether an event is a bubbling event.	Event
		cancelable : Boolean [read-only] Indicates whether the behavior associated with the event can be prevented.	Event
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		currentTarget : Object [read-only] The object that is actively processing the Event object with an event listener.	Event
		eventPhase : uint [read-only] The current phase in the event flow.	Event
		relatedObject : DisplayObject Reference to the child object that was created or destroyed.	ChildExistenceChangedEvent
		target : Object [read-only] The event target.	Event
		type : String [read-only] The type of event.	Event

Public Methods

	Method		Defined By
		ChildExistenceChangedEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, relatedObject:DisplayObject = null) Constructor.	ChildExistenceChangedEvent
		clone():Event Duplicates an instance of an Event subclass.	Event
		formatToString(className:String, ... arguments):String A utility function for implementing the toString() method in custom ActionScript 3.0 Event classes.	Event
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isDefaultPrevented():Boolean Checks whether the preventDefault() method has been called on the event.	Event
		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
		preventDefault():void Cancels an event's default behavior if that behavior can be canceled.	Event
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		stopImmediatePropagation():void Prevents processing of any event listeners in the current node and any subsequent nodes in the event flow.	Event
		stopPropagation():void Prevents processing of any event listeners in nodes subsequent to the current node in the event flow.	Event
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns a string containing all the properties of the Event object.	Event
		valueOf():Object Returns the primitive value of the specified object.	Object

Public Constants

	Constant		Defined By
		CHILD_ADD : String = "childAdd" [static] The ChildExistenceChangedEvent.CHILD_ADD constant defines the value of the type property of the event object for a childAdd event.	ChildExistenceChangedEvent
		CHILD_REMOVE : String = "childRemove" [static] The ChildExistenceChangedEvent.CHILD_REMOVE constant defines the value of the type property of the event object for a childRemove event.	ChildExistenceChangedEvent
		OVERLAY_CREATED : String = "overlayCreated" [static] The ChildExistenceChangedEvent.OVERLAY_CREATED constant defines the value of the type property of the event object for a overlayCreated event.	ChildExistenceChangedEvent

Property Detail

relatedObject

property

public var relatedObject:DisplayObject

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Reference to the child object that was created or destroyed.

Constructor Detail

ChildExistenceChangedEvent

()

Constructor

public function ChildExistenceChangedEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, relatedObject:DisplayObject = null)

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Constructor.

Parameters

	`type:String` — The event type; indicates the action that caused the event.

	`bubbles:Boolean` (default = `false`) — Specifies whether the event can bubble up the display list hierarchy.

	`cancelable:Boolean` (default = `false`) — Specifies whether the behavior associated with the event can be prevented.

	`relatedObject:DisplayObject` (default = `null`) — Reference to the child object that was created or destroyed.

Constant Detail

CHILD_ADD

Constant

public static const CHILD_ADD:String = "childAdd"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The ChildExistenceChangedEvent.CHILD_ADD constant defines the value of the type property of the event object for a childAdd event.

The properties of the event object have the following values:

Property	Value
`bubbles`	false
`cancelable`	false
`currentTarget`	The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`relatedObject`	Contains a reference to the child object that was created.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

CHILD_REMOVE

Constant

public static const CHILD_REMOVE:String = "childRemove"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The ChildExistenceChangedEvent.CHILD_REMOVE constant defines the value of the type property of the event object for a childRemove event.

The properties of the event object have the following values:

Property	Value
`bubbles`	false
`cancelable`	false
`currentTarget`	The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`relatedObject`	Contains a reference to the child object that is about to be removed.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

OVERLAY_CREATED

Constant

public static const OVERLAY_CREATED:String = "overlayCreated"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The ChildExistenceChangedEvent.OVERLAY_CREATED constant defines the value of the type property of the event object for a overlayCreated event.

The properties of the event object have the following values:

Property	Value
`bubbles`	false
`cancelable`	false
`currentTarget`	The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`relatedObject`	Contains a reference to the child object whose overlay was created.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

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ChildExistenceChangedEvent - AS3 Flex

Classes x

relatedObject

ChildExistenceChangedEvent

CHILD_ADD

CHILD_REMOVE

OVERLAY_CREATED