| Pacchetto | mx.events |
| Classe | public class TreeEvent |
| Ereditarietà | TreeEvent  Event Object |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Elementi API correlati
Proprietà pubbliche
Nascondi proprietà pubbliche ereditate
Mostra proprietà pubbliche ereditate| Proprietà | Definito da | ||
|---|---|---|---|
| animate : Boolean
Whether to animate an opening or closing operation; used for
ITEM_OPENING type events only. | TreeEvent | ||
 | bubbles : Boolean [sola lettura]
Indica se un evento è un evento di bubbling. | Event | |
| cancelable : Boolean [sola lettura]
Indica se il comportamento associato all'evento può essere impedito. | Event | |
| constructor : Object
Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto. | Object | |
| currentTarget : Object [sola lettura]
L'oggetto che elabora attivamente l'oggetto Event con un listener di eventi. | Event | |
| dispatchEvent : Boolean
Whether to dispatch an event (ITEM_OPEN or
ITEM_CLOSE) after the open or close animation
is complete. | TreeEvent | ||
| eventPhase : uint [sola lettura]
La fase attuale del flusso di eventi. | Event | |
| item : Object
Storage for the item property. | TreeEvent | ||
| itemRenderer : IListItemRenderer
The ListItemRenderer for the node that closed or opened. | TreeEvent | ||
| opening : Boolean
Used for an ITEM_OPENING type events only. | TreeEvent | ||
| target : Object [sola lettura]
Il target dell'evento. | Event | |
| triggerEvent : Event
The low level MouseEvent or KeyboardEvent that triggered this
event or null if this event was triggered programatically. | TreeEvent | ||
| type : String [sola lettura]
Il tipo di evento. | Event | |
Metodi pubblici
| Metodo | Definito da | ||
|---|---|---|---|
TreeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, item:Object = null, itemRenderer:IListItemRenderer = null, triggerEvent:Event = null)
Constructor. | TreeEvent | ||
|
Duplica un'istanza di una sottoclasse Event. | Event | |
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Una funzione dell'utilità per l'implementazione del metodo toString() in classi Event ActionScript 3.0 personalizzate. | Event | |
|
Indica se per un oggetto è definita una proprietà specifica. | Object | |
|
Verifica se sull'evento è stato chiamato il metodo preventDefault(). | Event | |
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Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | |
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Annulla il comportamento predefinito di un evento se tale comportamento può essere annullato. | Event | |
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Indica se la proprietà specificata esiste ed è enumerabile. | Object | |
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Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | |
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Impedisce l'elaborazione di tutti i listener di eventi nel nodo corrente e in tutti i nodi successivi del flusso di eventi. | Event | |
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Impedisce l'elaborazione di tutti i listener di eventi nei nodi del flusso di eventi successivi a quello corrente. | Event | |
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Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | |
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Restituisce una stringa che contiene tutte le proprietà dell'oggetto Event. | Event | |
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Restituisce il valore di base dell'oggetto specificato. | Object | |
Costanti pubbliche
| Costante | Definito da | ||
|---|---|---|---|
| ITEM_CLOSE : String = "itemClose" [statico]
The TreeEvent.ITEM_CLOSE event type constant indicates that a tree
branch closed or collapsed. | TreeEvent | ||
| ITEM_OPEN : String = "itemOpen" [statico]
The TreeEvent.ITEM_OPEN event type constant indicates that a tree
branch opened or expanded. | TreeEvent | ||
| ITEM_OPENING : String = "itemOpening" [statico]
The TreeEvent.ITEM_OPENING event type constant is dispatched immediately
before a tree opens or closes. | TreeEvent | ||
Descrizione delle proprietà
animate | proprietà |
public var animate:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Whether to animate an opening or closing operation; used for ITEM_OPENING type events only.
dispatchEvent | proprietà |
public var dispatchEvent:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Whether to dispatch an event (ITEM_OPEN or
ITEM_CLOSE) after the open or close animation
is complete. Used for ITEM_OPENING type events only.
item | proprietà |
public var item:Object| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Storage for the item property.
If you populate the Tree from XML data, access
the properties for the node as
event.item.@attribute_name.
itemRenderer | proprietà |
public var itemRenderer:IListItemRenderer| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The ListItemRenderer for the node that closed or opened.
opening | proprietà |
public var opening:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Used for an ITEM_OPENING type events only.
Indicates whether the item
is opening true, or closing false.
triggerEvent | proprietà |
public var triggerEvent:Event| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The low level MouseEvent or KeyboardEvent that triggered this
event or null if this event was triggered programatically.
Descrizione della funzione di costruzione
TreeEvent | () | Funzione di costruzione |
public function TreeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, item:Object = null, itemRenderer:IListItemRenderer = null, triggerEvent:Event = null)| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Constructor. Normally called by the Flex Tree control; not used in application code.
Parametritype:String — The event type; indicates the action that caused the event.
| |
bubbles:Boolean (default = false) | |
cancelable:Boolean (default = false) | |
item:Object (default = null) | |
itemRenderer:IListItemRenderer (default = null) | |
triggerEvent:Event (default = null) |
Descrizione delle costanti
ITEM_CLOSE | Costante |
public static const ITEM_CLOSE:String = "itemClose"| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The TreeEvent.ITEM_CLOSE event type constant indicates that a tree branch closed or collapsed.
The properties of the event object for this event type have the following values. Not all properties are meaningful for all kinds of events. See the detailed property descriptions for more information.
| Property | Value |
|---|---|
itemRenderer | The ListItemRenderer for the node that closed |
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. |
triggerEvent | If the node closed in response to a user action, identifies it as a keyboard action or a mouse action. |
item | the Tree item (node) that closed |
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. |
type | TreeEvent.ITEM_CLOSE |
ITEM_OPEN | Costante |
public static const ITEM_OPEN:String = "itemOpen"| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The TreeEvent.ITEM_OPEN event type constant indicates that a tree branch opened or expanded.
The properties of the event object for this event type have the following values. Not all properties are meaningful for all kinds of events. See the detailed property descriptions for more information.
| Property | Value |
|---|---|
itemRenderer | The ListItemRenderer for the item (node) that opened |
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. |
triggerEvent | If the item (node) opened in response to a user action, identifies it as a keyboard action or a mouse action. |
item | the Tree node that opened. |
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. |
type | TreeEvent.ITEM_OPEN |
ITEM_OPENING | Costante |
public static const ITEM_OPENING:String = "itemOpening"| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The TreeEvent.ITEM_OPENING event type constant is dispatched immediately before a tree opens or closes.
The properties of the event object for this event type have the following values. Not all properties are meaningful for all kinds of events. See the detailed property descriptions for more information.
| Property | Value |
|---|---|
animate | Whether to animate the opening or closing operation. |
bubbles | false |
cancelable | true |
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. |
dispatchEvent | Whether to dispatch an
ITEM_OPEN or ITEM_CLOSE event
after the open or close animation is complete. true |
itemRenderer | The ListItemRenderer for the item (node) that opened |
item | the Tree node that opened. |
opening | true if the item is opening, false if it is closing. |
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. |
triggerEvent | If the item opened in response to a user action, identifies it as a keyboard action or a mouse action. |
type | TreeEvent.ITEM_OPENING |
Tue Jun 12 2018, 02:44 PM Z