MenuEvent

套件	mx.events
類別	public class MenuEvent
繼承	MenuEvent ListEvent Event Object

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent class represents events that are associated with menu activities in controls such as Menu, MenuBar, and PopUpMenuButton.

公用屬性

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	屬性		定義自
		bubbles : Boolean [唯讀] 指出事件是否為反昇事件。	Event
		cancelable : Boolean [唯讀] 指出是否可避免與事件相關聯的行為指令。	Event
		columnIndex : int The zero-based index of the column that contains the item renderer where the event occurred.	ListEvent
		constructor : Object 類別物件的參照或是特定物件實體的建構函數。	Object
		currentTarget : Object [唯讀] 正主動使用事件偵聽程式處理 Event 物件的物件。	Event
		eventPhase : uint [唯讀] 事件流程中的目前階段。	Event
		index : int The index of the associated menu item within its parent menu or submenu.	MenuEvent
		item : Object The specific item in the dataProvider.	MenuEvent
		itemRenderer : IListItemRenderer The item renderer where the event occurred.	ListEvent
		label : String The label text of the associated menu item.	MenuEvent
		menu : Menu The specific Menu instance associated with the event, such as the menu or submenu that was hidden or opened.	MenuEvent
		menuBar : MenuBar The MenuBar instance that is the parent of the selected Menu control, or null when the target Menu control is not parented by a MenuBar control.	MenuEvent
		reason : String The reason the itemEditEnd event was dispatched.	ListEvent
		rowIndex : int In the zero-based index of the row that contains the item renderer where the event occured, or for editing events, the index of the item in the data provider that is being edited.	ListEvent
		target : Object [唯讀] 事件目標。	Event
		type : String [唯讀] 事件類型。	Event

公用方法

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	方法		定義自
		MenuEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = true, menuBar:MenuBar = null, menu:Menu = null, item:Object = null, itemRenderer:IListItemRenderer = null, label:String = null, index:int = -1) Constructor.	MenuEvent
		clone():Event 複製 Event 子類別的實體。	Event
		formatToString(className:String, ... arguments):String 公用程式函數，可用來實作自訂 ActionScript 3.0 Event 類別中的 toString() 方法。	Event
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		isDefaultPrevented():Boolean 檢查是否已經對事件呼叫 preventDefault() 方法。	Event
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	Object
		preventDefault():void 如果可以取消事件的預設行為指令，則取消該行為指令。	Event
		propertyIsEnumerable(name:String):Boolean 指出指定的屬性是否存在，以及是否可列舉。	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 為迴圈作業設定動態屬性的可用性。	Object
		stopImmediatePropagation():void 避免處理事件流程中，目前節點以及任何後續節點中的任何事件偵聽程式。	Event
		stopPropagation():void 避免處理接續在事件流程中的目前節點之後，後續節點中的任何事件偵聽程式。	Event
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 傳回包含 Event 物件所有屬性的字串。	Event
		valueOf():Object 會傳回指定之物件的基本值。	Object

公用常數

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	常數		定義自
		CHANGE : String = "change" [靜態] The MenuEvent.CHANGE event type constant indicates that selection changed as a result of user interaction.	MenuEvent
		ITEM_CLICK : String = "itemClick" [靜態] The MenuEvent.ITEM_CLICK event type constant indicates that the user selected a menu item.	MenuEvent
		ITEM_ROLL_OUT : String = "itemRollOut" [靜態] The MenuEvent.ITEM_ROLL_OUT type constant indicates that the mouse pointer rolled out of a menu item.	MenuEvent
		ITEM_ROLL_OVER : String = "itemRollOver" [靜態] The MenuEvent.ITEM_ROLL_OVER type constant indicates that the mouse pointer rolled over a menu item.	MenuEvent
		MENU_HIDE : String = "menuHide" [靜態] The MenuEvent.MENU_HIDE event type constant indicates that a menu or submenu closed.	MenuEvent
		MENU_SHOW : String = "menuShow" [靜態] The MenuEvent.MENU_SHOW type constant indicates that the mouse pointer rolled a menu or submenu opened.	MenuEvent

屬性詳細資訊

index

屬性

public var index:int

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The index of the associated menu item within its parent menu or submenu. This is -1 for the menuShow and menuHide events.

item

屬性

public var item:Object

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The specific item in the dataProvider. This is null for the menuShow and menuHide events.

label

屬性

public var label:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The label text of the associated menu item. This is null for the menuShow and menuHide events.

menuBar

屬性

public var menuBar:MenuBar

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuBar instance that is the parent of the selected Menu control, or null when the target Menu control is not parented by a MenuBar control.

建構函式詳細資料

()

建構函式

public function MenuEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = true, menuBar:MenuBar = null, menu:Menu = null, item:Object = null, itemRenderer:IListItemRenderer = null, label:String = null, index:int = -1)

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Constructor. Normally called by the Menu object.

參數

	`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 = `true`) — Specifies whether the behavior associated with the event can be prevented.

	`menuBar:MenuBar` (default = `null`) — The MenuBar instance that is the parent of the selected Menu control, or null when the target Menu control is not parented by a MenuBar control.

	`menu:Menu` (default = `null`) — The specific Menu instance associated with the event, such as the menu or submenu that was hidden or opened. This property is null if a MenuBar item dispatches the event.

	`item:Object` (default = `null`) — The item in the dataProvider of the associated menu item.

	`itemRenderer:IListItemRenderer` (default = `null`) — The ListItemRenderer of the associated menu item.

	`label:String` (default = `null`) — The label text of the associated menu item.

	`index:int` (default = `-1`) — The index in the menu of the associated menu item.

常數詳細資訊

CHANGE

常數

public static const CHANGE:String = "change"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.CHANGE event type constant indicates that selection changed as a result of user interaction.

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
`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`.
`index`	The index in the menu of the selected menu item.
`item`	The item in the dataProvider that was selected.
`itemRenderer`	The item renderer of the selected menu item.
`label`	The label text of the selected menu item.
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.CHANGE

ITEM_CLICK

常數

public static const ITEM_CLICK:String = "itemClick"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.ITEM_CLICK event type constant indicates that the user selected a menu item.

Property	Value
`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`.
`index`	The index in the menu of the selected menu item.
`item`	The item in the dataProvider that was selected.
`itemRenderer`	The ListItemRenderer of the selected menu item.
`label`	The label text of the selected menu item.
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.ITEM_CLICK

ITEM_ROLL_OUT

常數

public static const ITEM_ROLL_OUT:String = "itemRollOut"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.ITEM_ROLL_OUT type constant indicates that the mouse pointer rolled out of a menu item.

Property	Value
`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`.
`index`	The index in the menu of the menu item that was rolled out of.
`item`	The item in the dataProvider corresponding to the menu item that was rolled out of.
`itemRenderer`	The ListItemRenderer of the menu item that was rolled out of.
`label`	The label text of the menu item that was rolled out of.
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.ITEM_ROLL_OUT

ITEM_ROLL_OVER

常數

public static const ITEM_ROLL_OVER:String = "itemRollOver"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.ITEM_ROLL_OVER type constant indicates that the mouse pointer rolled over a menu item.

Property	Value
`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`.
`index`	The index in the menu of the menu item that was rolled over.
`item`	The item in the dataProvider associated with the rolled over menu item.
`itemRenderer`	The ListItemRenderer of the menu item that was rolled over.
`label`	The label text of the menu item that was rolled over.
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.ITEM_ROLL_OVER

MENU_HIDE

常數

public static const MENU_HIDE:String = "menuHide"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.MENU_HIDE event type constant indicates that a menu or submenu closed.

Property	Value
`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`.
`index`	-1. This property is not set for this type of event.
`item`	null. This property is not set for this type of event.
`itemRenderer`	null. This property is not set for this type of event.
`label`	null. This property is not set for this type of event.
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.MENU_HIDE

MENU_SHOW

常數

public static const MENU_SHOW:String = "menuShow"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The MenuEvent.MENU_SHOW type constant indicates that the mouse pointer rolled a menu or submenu opened.

Property	Value
`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`.
`index`	-1. This property is not set for this type of event.
`item`	null. This property is not set for this type of event.
`itemRenderer`	null. This property is not set for this type of event.
`label`	`null. This property is not set for this type of event.`
`menu`	The specific Menu instance associated with this event, or `null` if a MenuBar item is dispatching the event.
`menuBar`	The MenuBar instance that is the parent of the Menu control, or `null` if the Menu control is not parented by a MenuBar control.
`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`	MenuEvent.MENU_SHOW

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MenuEvent - AS3 Flex

類別 x

index

item

label

menu

menuBar

MenuEvent

CHANGE

ITEM_CLICK

ITEM_ROLL_OUT

ITEM_ROLL_OVER

MENU_HIDE

MENU_SHOW