| 套件 | mx.controls |
| 類別 | public class Tree |
| 繼承 | Tree  List ListBase ScrollControlBase UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| 實作 | IIMESupport |
| 子類別 | DDExplorer, FileSystemTree, MxTreeNav |
| 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 |
By default, a leaf is represented by a text label next to a file icon. A branch is represented by a text label next to a folder icon, with a disclosure triangle that a user can open to expose children.
The Tree class uses an ITreeDataDescriptor or ITreeDataDescriptor2 object to parse and
manipulate the data provider.
The default tree data descriptor, an object of the DefaultDataDescriptor class,
supports XML and Object classes; an Object class data provider must have all children
in children fields.
The Tree control has the following default sizing characteristics:
| Characteristic | Description |
|---|---|
| Default size | Wide enough to accommodate the icon, label, and expansion triangle, if any, of the widest node in the first 7 displayed (uncollapsed) rows, and seven rows high, where each row is 20 pixels in height. If a scroll bar is required, the width of the scroll bar is not included in the width calculations. |
| Minimum size | 0 pixels. |
| Maximum size | 5000 by 5000. |
顯示 MXML 語法
隱藏 MXML 語法The <mx:Tree> tag inherits all the tag attributes of its superclass, and adds the following tag attributes:
<mx:Tree
Properties
dataDescriptor="Instance of DefaultDataDescriptor"
dataProvider="null"
dragMoveEnabled="true|false"
firstVisibleItem="First item in the control"
hasRoot="false|true"
itemIcons="null"
maxHorizontalScrollPosition="0"
openItems="null"
showRoot="true|false"
Styles
alternatingItemColors="undefined"
backgroundDisabledColor="0xDDDDDD"
defaultLeafIcon="'TreeNodeIcon' symbol in Assets.swf"
depthColors="undefined"
disclosureClosedIcon="'TreeDisclosureClosed' symbol in Assets.swf"
disclosureOpenIcon="'TreeDisclosureOpen' symbol in Assets.swf"
folderClosedIcon="'TreeFolderClosed' symbol in Assets.swf"
folderOpenIcon="'TreeFolderOpen' symbol in Assets.swf"
indentation="17"
openDuration="250"
openEasingFunction="undefined"
paddingLeft="2"
paddingRight="0"
rollOverColor="0xAADEFF"
selectionColor="0x7FCDFE"
selectionDisabledColor="0xDDDDDD"
selectionEasingFunction="undefined"
textRollOverColor="0x2B333C"
textSelectedColor="0x2B333C"
Events
change="No default"
itemClose="No default"
itemOpen="No default"
itemOpening="No default"
/>
預設 MXML 屬性dataProvider
更多範例
Creating a Spark item renderer
for an MX Tree control
Example: Using an item renderer with an MX Tree control
Example: Using a custom item editor with an MX Tree control
Example: Using an item renderer with an MX Tree control
Example: Using a custom item editor with an MX Tree control
相關 API 元素
mx.controls.treeClasses.ITreeDataDescriptor
mx.controls.treeClasses.ITreeDataDescriptor2
mx.controls.treeClasses.DefaultDataDescriptor
mx.controls.treeClasses.ITreeDataDescriptor2
mx.controls.treeClasses.DefaultDataDescriptor
公用屬性
| 屬性 | 定義自 | ||
|---|---|---|---|
 | accessibilityDescription : String
A convenience accessor for the description property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityEnabled : Boolean
A convenience accessor for the silent property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityImplementation : AccessibilityImplementation
對此 InteractiveObject 實體目前的輔助功能實作 (AccessibilityImplementation)。 | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
此顯示物件的目前輔助功能選項。 | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [唯讀]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| allowDragSelection : Boolean = false
A flag that indicates whether drag-selection is enabled. | ListBase | |
| allowMultipleSelection : Boolean
A flag that indicates whether you can allow more than one item to be
selected at the same time. | ListBase | |
| alpha : Number
指出所指定物件的 Alpha 透明度值。 | DisplayObject | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [唯讀]
True if this component is enabled for automation, false
otherwise. | UIComponent | |
| automationName : String
Name that can be used as an identifier for this object. | UIComponent | |
| automationOwner : DisplayObjectContainer [唯讀]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [唯讀]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [唯讀]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [唯讀]
This value generally corresponds to the rendered appearance of the
object and should be usable for correlating the identifier with
the object as it appears visually within the application. | UIComponent | |
| automationVisible : Boolean [唯讀]
True if this component is visible for automation, false
otherwise. | UIComponent | |
| baseline : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| baselinePosition : Number [唯讀]
The y-coordinate of the baseline
of the first line of text of the component. | UIComponent | |
| blendMode : String
來自 BlendMode 類別的值，會指定要使用何種混合模式。 | DisplayObject | |
| blendShader : Shader [唯寫]
設定用來混合前景和背景的著色器。 | DisplayObject | |
| borderMetrics : EdgeMetrics [唯讀]
Returns an EdgeMetrics object that has four properties:
left, top, right,
and bottom. | ScrollControlBase | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
可指定此 sprite 的按鈕模式。 | Sprite | |
| cacheAsBitmap : Boolean
如果設定為 true，Flash 執行階段會快取顯示物件的內部點陣圖表示法。 | DisplayObject | |
| cacheAsBitmapMatrix : Matrix
如果為非 null，當 cacheAsBitmap 設定為 true 時，這個 Matrix 物件會定義顯示物件的顯示方法。 | DisplayObject | |
| cacheHeuristic : Boolean [唯寫]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| className : String [唯讀]
The name of this instance's class, such as "Button". | UIComponent | |
| columnCount : int
The number of columns to be displayed in a TileList control or items
in a HorizontalList control. | ListBase | |
| columnWidth : Number
The width of the control's columns. | ListBase | |
| constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | Object | |
| contentMouseX : Number [唯讀]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [唯讀]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contextMenu : NativeMenu
指定與此物件有關聯的快顯選單。 | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [唯讀]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| data : Object
The item in the data provider this component should render when
this component is used as an item renderer or item editor. | ListBase | |
| dataDescriptor : mx.controls.treeClasses:ITreeDataDescriptor
Returns the current ITreeDataDescriptor. | Tree | ||
| dataProvider : Object [覆寫]
An object that contains the data to be displayed. | Tree | ||
| dataTipField : String
Name of the field in the data provider items to display as the
data tip. | ListBase | |
| dataTipFunction : Function
User-supplied function to run on each item to determine its dataTip. | ListBase | |
| depth : Number
Determines the order in which items inside of containers
are rendered. | UIComponent | |
| descriptor : UIComponentDescriptor
Reference to the UIComponentDescriptor, if any, that was used
by the createComponentFromDescriptor() method to create this
UIComponent instance. | UIComponent | |
| designLayer : DesignLayer
Specifies the optional DesignLayer instance associated with this visual
element. | UIComponent | |
| document : Object
A reference to the document object associated with this UIComponent. | UIComponent | |
| doubleClickEnabled : Boolean [覆寫]
Specifies whether the UIComponent object receives doubleClick events. | UIComponent | |
| dragEnabled : Boolean
A flag that indicates whether you can drag items out of
this control and drop them on other controls. | ListBase | |
| dragMoveEnabled : Boolean [覆寫]
Indicates that items can be moved instead of just copied
from the Tree control as part of a drag-and-drop operation. | Tree | ||
| dropEnabled : Boolean
A flag that indicates whether dragged items can be dropped onto the
control. | ListBase | |
| dropTarget : DisplayObject [唯讀]
指定要將 sprite 拖曳至或丟棄至哪個顯示物件上。 | Sprite | |
| editable : Boolean
A flag that indicates whether or not the user can edit
items in the data provider. | List | |
| editedItemPosition : Object
The column and row index of the item renderer for the
data provider item being edited, if any. | List | |
| editedItemRenderer : IListItemRenderer [唯讀]
A reference to the item renderer
in the DataGrid control whose item is currently being edited. | List | |
| editorDataField : String = "text"
The name of the property of the item editor that contains the new
data for the list item. | List | |
| editorHeightOffset : Number = 0
The height of the item editor, in pixels, relative to the size of the
item renderer. | List | |
| editorUsesEnterKey : Boolean = false
A flag that indicates whether the item editor uses Enter key. | List | |
| editorWidthOffset : Number = 0
The width of the item editor, in pixels, relative to the size of the
item renderer. | List | |
| editorXOffset : Number = 0
The x location of the upper-left corner of the item editor,
in pixels, relative to the upper-left corner of the item. | List | |
| editorYOffset : Number = 0
The y location of the upper-left corner of the item editor,
in pixels, relative to the upper-left corner of the item. | List | |
| enabled : Boolean
Whether the component can accept user interaction. | UIComponent | |
| enableIME : Boolean [唯讀]
A flag that indicates whether the IME should
be enabled when the component receives focus. | List | |
| errorString : String
The text that displayed by a component's error tip when a
component is monitored by a Validator and validation fails. | UIComponent | |
| explicitHeight : Number
Number that specifies the explicit height of the component,
in pixels, in the component's coordinates. | UIComponent | |
| explicitMaxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMaxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitWidth : Number
Number that specifies the explicit width of the component,
in pixels, in the component's coordinates. | UIComponent | |
| filters : Array
索引的陣列，其中包含目前和顯示物件相關的每個濾鏡物件。 | DisplayObject | |
| firstVisibleItem : Object
The item that is currently displayed in the top row of the tree. | Tree | ||
| flexContextMenu : IFlexContextMenu
The context menu for this UIComponent. | UIComponent | |
| focusEnabled : Boolean
Indicates whether the component can receive focus when tabbed to. | UIComponent | |
| focusManager : IFocusManager
Gets the FocusManager that controls focus for this component
and its peers. | UIComponent | |
| focusPane : Sprite
The focus pane associated with this object. | UIComponent | |
| focusRect : Object
會指定這個物件是否會顯示焦點矩形。 | InteractiveObject | |
| graphics : Graphics [唯讀]
指定屬於此 sprite 物件的 Graphics 物件，其中可能會產生向量繪圖命令。 | Sprite | |
| hasFocusableChildren : Boolean
A flag that indicates whether child objects can receive focus. | UIComponent | |
| hasLayoutMatrix3D : Boolean [唯讀]
Contains true if the element has 3D Matrix. | UIComponent | |
| hasRoot : Boolean [唯讀]
Indicates that the current dataProvider has a root item; for example,
a single top node in a hierarchical structure. | Tree | ||
| height : Number [覆寫]
Number that specifies the height of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| hitArea : Sprite
指定用來當作 sprite 作用區域的另一個 sprite。 | Sprite | |
| horizontalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| horizontalScrollPolicy : String
A property that indicates whether the horizontal scroll
bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties() method. | ScrollControlBase | |
| horizontalScrollPosition : Number
The offset into the content from the left edge. | ScrollControlBase | |
| iconField : String
The name of the field in the data provider object that determines what to
display as the icon. | ListBase | |
| iconFunction : Function
A user-supplied function to run on each item to determine its icon. | ListBase | |
| id : String
ID of the component. | UIComponent | |
| imeMode : String
Specifies the IME (input method editor) mode. | List | |
| includeInLayout : Boolean
Specifies whether this component is included in the layout of the
parent container. | UIComponent | |
| inheritingStyles : Object
The beginning of this component's chain of inheriting styles. | UIComponent | |
| initialized : Boolean
A flag that determines if an object has been through all three phases
of layout: commitment, measurement, and layout (provided that any were required). | UIComponent | |
| instanceIndex : int [唯讀]
The index of a repeated component. | UIComponent | |
| instanceIndices : Array
An Array containing the indices required to reference
this UIComponent object from its parent document. | UIComponent | |
| is3D : Boolean [唯讀]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [唯讀]
Contains true if this UIComponent instance is a document object. | UIComponent | |
| isPopUp : Boolean
Set to true by the PopUpManager to indicate
that component has been popped up. | UIComponent | |
| itemEditor : IFactory
The class factory for the item editor to use for the control, if the
editable property is set to true. | List | |
| itemEditorInstance : IListItemRenderer
A reference to the currently active instance of the item editor,
if it exists. | List | |
| itemIcons : Object
An object that specifies the icons for the items. | Tree | ||
| itemRenderer : IFactory
The custom item renderer for the control. | ListBase | |
| labelField : String
The name of the field in the data provider items to display as the label. | ListBase | |
| labelFunction : Function
A user-supplied function to run on each item to determine its label. | ListBase | |
| layoutMatrix3D : Matrix3D [唯寫]
The transform matrix that is used to calculate a component's layout
relative to its siblings. | UIComponent | |
| left : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| listData : BaseListData
When a component is used as a drop-in item renderer or drop-in
item editor, Flex initializes the listData property
of the component with the additional data from the list control. | ListBase | |
| liveScrolling : Boolean = true
A flag that indicates whether scrolling is live as the
scrollbar thumb is moved
or the view is not updated until the thumb is released. | ScrollControlBase | |
| loaderInfo : LoaderInfo [唯讀]
會傳回 LoaderInfo 物件，其中包含關於載入此顯示物件所屬之檔案的資訊。 | DisplayObject | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject
呼叫之顯示物件會以指定的 mask 物件遮蓋。 | DisplayObject | |
| maxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| maxHorizontalScrollPosition : Number [覆寫]
The maximum value for the maxHorizontalScrollPosition property for the Tree control. | Tree | ||
| maxVerticalScrollPosition : Number
The maximum value for the verticalScrollPosition property. | ScrollControlBase | |
| maxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| measuredHeight : Number
The default height of the component, in pixels. | UIComponent | |
| measuredMinHeight : Number
The default minimum height of the component, in pixels. | UIComponent | |
| measuredMinWidth : Number
The default minimum width of the component, in pixels. | UIComponent | |
| measuredWidth : Number
The default width of the component, in pixels. | UIComponent | |
| menuSelectionMode : Boolean = false
A flag that indicates whether menu-style selection
should be used. | ListBase | |
| metaData : Object
如果中繼資料是透過 PlaceObject4 標籤與 SWF 檔案中的這個 DisplayObject 實體一同儲存，則會取得 DisplayObject 實體的中繼資料物件。 | DisplayObject | |
| minHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| minWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| moduleFactory : IFlexModuleFactory
A module factory is used as context for using embedded fonts and for
finding the style manager that controls the styles for this
component. | UIComponent | |
| mouseChildren : Boolean
判斷物件的子系是否支援啟用滑鼠或使用者輸入裝置。 | DisplayObjectContainer | |
| mouseEnabled : Boolean
指定此物件是否接收滑鼠或其他使用者輸入及訊息。 | InteractiveObject | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| mouseX : Number [唯讀]
指出滑鼠或使用者輸入裝置位置的 x 座標，以像素為單位。 | DisplayObject | |
| mouseY : Number [唯讀]
指出滑鼠或使用者輸入裝置位置的 y 座標，以像素為單位。 | DisplayObject | |
| name : String
指出 DisplayObject 的實體名稱。 | DisplayObject | |
| needsSoftKeyboard : Boolean
指定虛擬鍵盤 (螢幕上的軟體鍵盤) 是否應在此 InteractiveObject 實體接收到焦點時顯示。 | InteractiveObject | |
| nestLevel : int
Depth of this object in the containment hierarchy. | UIComponent | |
| nonInheritingStyles : Object
The beginning of this component's chain of non-inheriting styles. | UIComponent | |
| nullItemRenderer : IFactory
The custom item renderer for the control. | ListBase | |
| numAutomationChildren : int [唯讀]
The number of automation children this container has. | UIComponent | |
| numChildren : int [唯讀]
傳回此物件的子系數量。 | DisplayObjectContainer | |
| offscreenExtraRowsOrColumns : int
The target number of extra rows or columns of item renderers to be used
in the layout of the control. | ListBase | |
| opaqueBackground : Object
會指定顯示物件是否不透明，並具有特定背景顏色。 | DisplayObject | |
| openItems : Object
The items that have been opened or set opened. | Tree | ||
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| parent : DisplayObjectContainer [覆寫] [唯讀]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [唯讀]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [唯讀]
A reference to the parent document object for this UIComponent. | UIComponent | |
| percentHeight : Number
Specifies the height of a component as a percentage
of its parent's size. | UIComponent | |
| percentWidth : Number
Specifies the width of a component as a percentage
of its parent's size. | UIComponent | |
| postLayoutTransformOffsets : mx.geom:TransformOffsets
Defines a set of adjustments that can be applied to the object's
transform in a way that is invisible to its parent's layout. | UIComponent | |
| processedDescriptors : Boolean
Set to true after immediate or deferred child creation,
depending on which one happens. | UIComponent | |
| rendererIsEditor : Boolean = false
Specifies whether the item renderer is also an item
editor. | List | |
| repeater : IRepeater [唯讀]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [唯讀]
The index of the item in the data provider
of the Repeater that produced this UIComponent. | UIComponent | |
| repeaterIndices : Array
An Array containing the indices of the items in the data provider
of the Repeaters in the parent document that produced this UIComponent. | UIComponent | |
| repeaters : Array
An Array containing references to the Repeater objects
in the parent document that produced this UIComponent. | UIComponent | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| root : DisplayObject [唯讀]
對載入之 SWF 檔案的顯示物件而言，root 屬性就是該 SWF 檔案所呈現之顯示清單樹狀結構部分的最上層顯示物件。 | DisplayObject | |
| rotation : Number [覆寫]
指出 DisplayObject 實體的旋轉度數 (從該物件原本方向算起)。 | UIComponent | |
| rotationX : Number [覆寫]
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationY : Number [覆寫]
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationZ : Number [覆寫]
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | UIComponent | |
| rowCount : int
Number of rows to be displayed. | ListBase | |
| rowHeight : Number
The height of the rows in pixels. | ListBase | |
| scale9Grid : Rectangle
目前產生效用的縮放格線。 | DisplayObject | |
| scaleX : Number [覆寫]
Number that specifies the horizontal scaling factor. | UIComponent | |
| scaleY : Number [覆寫]
Number that specifies the vertical scaling factor. | UIComponent | |
| scaleZ : Number [覆寫]
Number that specifies the scaling factor along the z axis. | UIComponent | |
| screen : Rectangle [唯讀]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
顯示物件的捲動矩形範圍。 | DisplayObject | |
| scrollTipFunction : Function
A function that computes the string to be displayed as the ScrollTip. | ScrollControlBase | |
| selectable : Boolean
A flag that indicates whether the list shows selected items
as selected. | ListBase | |
| selectedIndex : int
The index in the data provider of the selected item. | ListBase | |
| selectedIndices : Array
An array of indices in the data provider of the selected items. | ListBase | |
| selectedItem : Object
A reference to the selected item in the data provider. | ListBase | |
| selectedItems : Array
An array of references to the selected items in the data provider. | ListBase | |
| selectedItemsCompareFunction : Function
A function used to compare items in the selectedItems property
against items in the data provider. | ListBase | |
| showDataTips : Boolean
A flag that indicates whether dataTips are displayed for text in the rows. | ListBase | |
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| showRoot : Boolean
Sets the visibility of the root item. | Tree | ||
| showScrollTips : Boolean = false
A flag that indicates whether a tooltip should appear
near the scroll thumb when it is being dragged. | ScrollControlBase | |
| softKeyboard : String
控制軟體鍵盤的外觀。 | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
定義顯示軟體鍵盤時，應保留於螢幕上的區域 (iOS 未提供)。 | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
控制此 Sprite 的聲音。 | Sprite | |
| stage : Stage [唯讀]
顯示物件的「舞台」。 | DisplayObject | |
| states : Array
The view states that are defined for this component. | UIComponent | |
| styleDeclaration : CSSStyleDeclaration
Storage for the inline inheriting styles on this object. | UIComponent | |
| styleManager : IStyleManager2 [唯讀]
Returns the StyleManager instance used by this component. | UIComponent | |
| styleName : Object
The class style used by this component. | UIComponent | |
| styleParent : IAdvancedStyleClient
A component's parent is used to evaluate descendant selectors. | UIComponent | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| tabChildren : Boolean
判斷物件的子系是否支援啟用定位鍵。 | DisplayObjectContainer | |
| tabEnabled : Boolean
會指定這個物件是否在停駐點順序中。 | InteractiveObject | |
| tabFocusEnabled : Boolean
A flag that indicates whether this object can receive focus
via the TAB key
This is similar to the tabEnabled property
used by the Flash Player.
This is usually true for components that
handle keyboard input, but some components in controlbars
have them set to false because they should not steal
focus from another component like an editor. | UIComponent | |
| tabIndex : int
會指定 SWF 檔中的物件停駐點順序。 | InteractiveObject | |
| textSnapshot : flash.text:TextSnapshot [唯讀]
傳回此 DisplayObjectContainer 實體的 TextSnapshot 物件。 | DisplayObjectContainer | |
| toolTip : String
Text to display in the ToolTip. | UIComponent | |
| top : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| transform : flash.geom:Transform [覆寫]
An object with properties pertaining to a display object's matrix, color transform,
and pixel bounds. | UIComponent | |
| transformX : Number
Sets the x coordinate for the transform center of the component. | UIComponent | |
| transformY : Number
Sets the y coordinate for the transform center of the component. | UIComponent | |
| transformZ : Number
Sets the z coordinate for the transform center of the component. | UIComponent | |
| transitions : Array
An Array of Transition objects, where each Transition object defines a
set of effects to play when a view state change occurs. | UIComponent | |
| tweeningProperties : Array
Array of properties that are currently being tweened on this object. | UIComponent | |
| uid : String
A unique identifier for the object. | UIComponent | |
| updateCompletePendingFlag : Boolean
A flag that determines if an object has been through all three phases
of layout validation (provided that any were required). | UIComponent | |
| useHandCursor : Boolean
指示當指標滑入 Sprite，且其 buttonMode 屬性設為 true 時，是否要出現指示手掌 (手掌游標) 的 Boolean 值。 | Sprite | |
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| value : Object [唯讀]
The selected item, or the data or label field of the selected item. | ListBase | |
| variableRowHeight : Boolean
A flag that indicates whether the individual rows can have different
height. | ListBase | |
| verticalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| verticalScrollPolicy : String
A property that indicates whether the vertical scroll bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties() method. | ScrollControlBase | |
| verticalScrollPosition : Number
The offset into the content from the top edge. | ScrollControlBase | |
| viewMetrics : EdgeMetrics [唯讀]
An EdgeMetrics object taking into account the scroll bars,
if visible. | ScrollControlBase | |
| visible : Boolean [覆寫]
Whether or not the display object is visible. | UIComponent | |
| width : Number [覆寫]
Number that specifies the width of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| wordWrap : Boolean
A flag that indicates whether text in the row should be word wrapped. | ListBase | |
| x : Number [覆寫]
Number that specifies the component's horizontal position,
in pixels, within its parent container. | UIComponent | |
| y : Number [覆寫]
Number that specifies the component's vertical position,
in pixels, within its parent container. | UIComponent | |
| z : Number [覆寫]
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | UIComponent | |
公用方法
| 方法 | 定義自 | ||
|---|---|---|---|
Tree()
Constructor. | Tree | ||
|
將 DisplayObject 子實體加入至此 DisplayObjectContainer 實體。 | DisplayObjectContainer | |
|
將 DisplayObject 子實體加入至此 DisplayObjectContainer 實體。 | DisplayObjectContainer | |
|
Adds an item renderer if a data change effect is running. | ListBase | |
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。 | EventDispatcher | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
指出安全性限制是否會造成傳回的清單 (可用指定的 point 點呼叫 DisplayObjectContainer.getObjectsUnderPoint() 方法來取得) 省略任何顯示物件。 | DisplayObjectContainer | |
|
Returns the index where the dropped items should be added
to the drop target. | ListBase | |
|
Queues a function to be called later. | UIComponent | |
|
Deletes a style property from this component instance. | UIComponent | |
|
判斷指定的顯示物件是否為 DisplayObjectContainer 實體的子系，或為實體本身。 | DisplayObjectContainer | |
|
Converts a Point object from content coordinates to global coordinates. | UIComponent | |
|
Converts a Point object from content to local coordinates. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Creates the item editor for the item renderer at the
editedItemPosition using the editor
specified by the itemEditor property. | List | |
| [覆寫]
Get the appropriate renderer, using the default renderer if none is specified. | List | |
|
Creates an id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
Deletes the id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
Closes an item editor that is currently open on an item. | List | |
|
Returns a UITextFormat object corresponding to the text styles
for this UIComponent. | UIComponent | |
| [覆寫]
Dispatches an event into the event flow. | UIComponent | |
|
Shows or hides the focus indicator around this component. | UIComponent | |
| drawRoundRect(x:Number, y:Number, w:Number, h:Number, r:Object = null, c:Object = null, alpha:Object = null, rot:Object = null, gradient:String = null, ratios:Array = null, hole:Object = null):void
Programmatically draws a rectangle into this skin's Graphics object. | UIComponent | |
|
Called by the effect instance when it stops playing on the component. | UIComponent | |
|
Called by the effect instance when it starts playing on the component. | UIComponent | |
|
Ends all currently playing effects on the component. | UIComponent | |
|
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
Opens or closes all the tree items below the specified item. | Tree | ||
expandItem(item:Object, open:Boolean, animate:Boolean = false, dispatchEvent:Boolean = false, cause:Event = null):void
Opens or closes a branch item. | Tree | ||
|
Finds an item in the list based on a String,
and moves the selection to it. | ListBase | |
|
Called after printing is complete. | UIComponent | |
|
Provides the automation object at the specified index. | UIComponent | |
|
Provides the automation object list . | UIComponent | |
|
傳回可定義顯示物件區域 (相對於 targetCoordinateSpace 物件的座標系統) 的矩形。 | DisplayObject | |
|
Returns the x coordinate of the element's bounds at the specified element size. | UIComponent | |
|
Returns the y coordinate of the element's bounds at the specified element size. | UIComponent | |
|
傳回存在於指定索引位置的子顯示物件實體。 | DisplayObjectContainer | |
|
傳回具有指定名稱的子顯示物件。 | DisplayObjectContainer | |
|
傳回 child DisplayObject 實體的索引位置。 | DisplayObjectContainer | |
|
Finds the type selectors for this UIComponent instance. | UIComponent | |
|
Returns a layout constraint value, which is the same as
getting the constraint style for this component. | UIComponent | |
|
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | |
|
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | |
|
Gets the object that currently has focus. | UIComponent | |
|
Return the appropriate factory, using the default factory if none specified. | ListBase | |
|
Returns the element's layout height. | UIComponent | |
|
Returns the element's layout width. | UIComponent | |
|
Returns the x coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the y coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings. | UIComponent | |
|
Returns the layout transform Matrix3D for this element. | UIComponent | |
|
Returns the element's maximum height. | UIComponent | |
|
Returns the element's maximum width. | UIComponent | |
|
Returns the element's minimum height. | UIComponent | |
|
Returns the element's minimum width. | UIComponent | |
|
傳回位於指定點底下，且屬於此 DisplayObjectContainer 實體之子系 (或孫系，以下類推) 的物件陣列。 | DisplayObjectContainer | |
Returns the known parent of a child item. | Tree | ||
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
根據 targetCoordinateSpace 參數所定義的座標系統，並排除形狀上的任何筆畫，傳回可定義顯示物件邊界的矩形。 | DisplayObject | |
|
Returns true or false
to indicates whether the effect should play on the target. | ListBase | |
|
Returns the item in the dataProvider that was used
by the specified Repeater to produce this Repeater, or
null if this Repeater isn't repeated. | UIComponent | |
|
Gets a style property that has been set anywhere in this
component's style lookup chain. | UIComponent | |
|
Converts a Point object from global to content coordinates. | UIComponent | |
|
將 point 物件從「舞台」(全域) 座標轉換成顯示物件的 (區域) 座標。 | DisplayObject | |
|
將二維點從「舞台」(全域) 座標轉換為三維顯示物件的 (區域) 座標。 | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。 | EventDispatcher | |
|
指出物件是否有已定義的指定屬性。 | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
Hides the drop indicator under the mouse pointer that indicates that a
drag and drop operation is allowed. | ListBase | |
|
評估顯示物件的範圍框，看它是否與 obj 顯示物件的範圍框重疊或相交。 | DisplayObject | |
|
評估顯示物件，看它是否與 x 和 y 參數所指定的點重疊或相交。 | DisplayObject | |
|
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
|
Get an item renderer for the index of an item in the data provider,
if one exists. | ListBase | |
|
Computes the offset into the data provider of the item
at colIndex, rowIndex. | ListBase | |
|
Initializes the internal structure of this component. | UIComponent | |
|
Initializes various properties which keep track of repeated instances
of this component. | UIComponent | |
|
Marks a component so that its updateDisplayList()
method gets called during a later screen update. | UIComponent | |
|
Called by a component's items to indicate that their depth
property has changed. | UIComponent | |
|
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes. | UIComponent | |
|
Refresh all rows on the next update. | ListBase | |
|
Marks a component so that its commitProperties()
method gets called during a later screen update. | UIComponent | |
|
Marks a component so that its measure()
method gets called during a later screen update. | UIComponent | |
|
Determines if the item renderer for a data provider item
is editable. | List | |
|
Determines if the item renderer for a data provider item
is highlighted (is rolled over via the mouse or under the caret due to keyboard navigation). | ListBase | |
Returns true if the specified item branch is open (is showing its children). | Tree | ||
|
Determines if the item renderer for a data provider item
is selectable. | ListBase | |
|
Determines if the item renderer for a data provider item
is selected. | ListBase | |
|
Determines if the item renderer for a data provider item
is the item under the caret due to keyboard navigation. | ListBase | |
|
Determines if an item is being displayed by a renderer. | ListBase | |
|
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 | |
|
Determines whether a renderer contains (or owns) a display object. | ListBase | |
|
Returns the index of the item in the data provider of the item
being rendered by this item renderer. | ListBase | |
|
Returns the dataTip string the renderer would display for the given
data object based on the dataTipField and dataTipFunction properties. | ListBase | |
|
Returns the class for an icon, if any, for a data item,
based on the iconField and iconFunction properties. | ListBase | |
|
Returns the item renderer for a given item in the data provider,
if there is one. | ListBase | |
|
Returns the string the renderer would display for the given data object
based on the labelField and labelFunction properties. | ListBase | |
|
將三維顯示物件的 (區域) 座標的三維點轉換為「舞台」(全域) 座標中的二維點。 | DisplayObject | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
將 point 物件從顯示物件的 (區域) 座標轉換成「舞台」(全域) 座標。 | DisplayObject | |
|
Returns true if cssState matches currentCSSState. | UIComponent | |
|
Determines whether this instance is the same as, or is a subclass of,
the given type. | UIComponent | |
|
Measures a set of items from the data provider using the
current item renderer and returns the sum of the heights
of those items. | ListBase | |
|
Measures the specified HTML text, which can contain HTML tags such
as <font> and <b>,
assuming that it is displayed
in a single-line UITextField using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
|
Measures the specified text, assuming that it is displayed
in a single-line UITextField (or UIFTETextField) using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
|
Measures a set of items from the data provider using
the current item renderer and returns the
maximum width found. | ListBase | |
|
Moves the component to a specified position within its parent. | UIComponent | |
|
Propagates style changes to the children. | UIComponent | |
|
Returns true if the chain of owner properties
points from child to this UIComponent. | UIComponent | |
|
Called by Flex when a UIComponent object is added to or removed from a parent. | UIComponent | |
|
Prepares an IFlexDisplayObject for printing. | UIComponent | |
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
|
Builds or rebuilds the CSS style cache for this component
and, if the recursive parameter is true,
for all descendants of this component as well. | UIComponent | |
|
For each effect event, registers the EffectManager
as one of the event listeners. | UIComponent | |
|
將指定的 child DisplayObject 實體從 DisplayObjectContainer 實體的子清單中移除。 | DisplayObjectContainer | |
|
從 DisplayObjectContainer 子清單中的指定索引位置移除子 DisplayObject。 | DisplayObjectContainer | |
|
將所有 child DisplayObject 實體從 DisplayObjectContainer 實體的子清單中移除。 | DisplayObjectContainer | |
|
Removes an item renderer if a data change effect is running. | ListBase | |
|
會從 EventDispatcher 物件移除偵聽程式。 | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
升起顯示虛擬鍵盤。 | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [靜態]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
|
Ensures that the data provider item at the given index is visible. | ListBase | |
|
Sizes the object. | UIComponent | |
|
變更顯示物件容器中現有子系的位置。 | DisplayObjectContainer | |
|
Sets a layout constraint value, which is the same as
setting the constraint style for this component. | UIComponent | |
|
Set the current state. | UIComponent | |
|
Sets the focus to this component. | UIComponent | |
Sets the associated icon for the item. | Tree | ||
|
Sets the coordinates that the element uses to draw on screen. | UIComponent | |
|
Sets the layout size of the element. | UIComponent | |
|
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
為迴圈作業設定動態屬性的可用性。 | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Displays a drop indicator under the mouse pointer to indicate that a
drag and drop operation is allowed and where the items will
be dropped. | ListBase | |
|
讓使用者拖曳指定的 sprite。 | Sprite | |
|
讓使用者將指定的 Sprite 拖曳至觸控裝置上。 | Sprite | |
|
遞迴停止執行所有 MovieClips 的時間軸根源於此物件。 | DisplayObjectContainer | |
|
結束 startDrag() 方法。 | Sprite | |
|
結束觸控裝置使用的 startTouchDrag() 方法。 | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [靜態]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
替換兩個指定子物件的 z 順序 (深度階層，由前至後順序)。 | DisplayObjectContainer | |
|
在子清單的兩個指定索引位置，替換子物件的 z 順序 (深度階層，由前至後順序)。 | DisplayObjectContainer | |
|
傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
| [覆寫]
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application. | FlexSprite | |
| transformAround(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void
A utility method to update the rotation, scale, and translation of the
transform while keeping a particular point, specified in the component's
own coordinate space, fixed in the parent's coordinate space. | UIComponent | |
|
A utility method to transform a point specified in the local
coordinates of this object to its location in the object's parent's
coordinates. | UIComponent | |
|
Called by an UnconstrainItemAction effect
as part of a data change effect if the item renderers corresponding
to certain data items need to move outside the normal positions
of item renderers in the control. | ListBase | |
|
Validates the position and size of children and draws other
visuals. | UIComponent | |
|
Validate and update the properties and layout of this object
and redraw it, if necessary. | UIComponent | |
|
Used by layout logic to validate the properties of a component
by calling the commitProperties() method. | UIComponent | |
|
Validates the measured size of the component
If the LayoutManager.invalidateSize() method is called with
this ILayoutManagerClient, then the validateSize() method
is called when it's time to do measurements. | UIComponent | |
|
Handles both the valid and invalid events from a
validator assigned to this component. | UIComponent | |
|
會傳回指定之物件的基本值。 | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。 | EventDispatcher | |
保護方法
| 方法 | 定義自 | ||
|---|---|---|---|
|
Adds the selected items to the DragSource object as part of a
drag-and-drop operation. | ListBase | |
|
Adds a renderer to the recycled renderer list,
making it invisible and cleaning up references to it. | ListBase | |
|
Add a blank row to the beginning of the arrays that store references to the rows. | ListBase | |
|
Adjust the focus rectangle. | UIComponent | |
|
Called from the updateDisplayList() method to adjust the size and position of
listContent. | ListBase | |
|
Commits the computed matrix built from the combination of the layout
matrix and the transform offsets to the flash displayObject's transform. | UIComponent | |
|
Sets up the effect for applying the selection indicator. | ListBase | |
|
This is an internal method used by the Flex framework
to support the Dissolve effect. | UIComponent | |
|
Calculates the y position of the drop indicator
when performing a drag-and-drop operation. | ListBase | |
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
|
Clears the caret indicator into the given Sprite. | ListBase | |
|
Clears the highlight indicator in the given Sprite. | ListBase | |
|
Removes all selection and highlight and caret indicators. | ListBase | |
|
Clears the set of selected items and removes all graphics
depicting the selected state of those items. | ListBase | |
|
Empty the visibleData hash table. | ListBase | |
|
Handles CollectionEvents dispatched from the data provider
as the data changes. | ListBase | |
| [覆寫]
Calculates the column width and row height and number of rows and
columns based on whether properties like columnCount
columnWidth, rowHeight and
rowCount were explicitly set. | ListBase | |
|
Configures the ScrollBars based on the number of rows and columns and
viewable rows and columns. | ListBase | |
|
Makes a deep copy of the object by calling the
ObjectUtil.copy() method, and replaces
the copy's uid property (if present) with a
new value by calling the UIDUtil.createUID() method. | ListBase | |
|
Copies the selected items in the order that they were selected. | ListBase | |
|
Creates the border for this component. | ScrollControlBase | |
| [覆寫]
Creates objects that are children of this ListBase; in this case,
the listContent object that will hold all the item
renderers. | ListBase | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Recycle a row that is no longer needed, and remove its indicators. | ListBase | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
[覆寫]
Handles DragEvent.DRAG_COMPLETE events. | Tree | ||
[覆寫]
Handles DragEvent.DRAG_DROP events. | Tree | ||
|
Handles DragEvent.DRAG_ENTER events. | ListBase | |
|
Handles DragEvent.DRAG_EXIT events. | ListBase | |
|
Handles DragEvent.DRAG_OVER events. | ListBase | |
|
Interval function that scrolls the list up or down
if the mouse goes above or below the list. | ListBase | |
|
The default handler for the dragStart event. | ListBase | |
| drawCaretIndicator(indicator:Sprite, x:Number, y:Number, width:Number, height:Number, color:uint, itemRenderer:IListItemRenderer):void
Draws the caret indicator into the given Sprite
at the position, width and height specified using the
color specified. | ListBase | |
| drawHighlightIndicator(indicator:Sprite, x:Number, y:Number, width:Number, height:Number, color:uint, itemRenderer:IListItemRenderer):void
Draws the highlight indicator into the given Sprite
at the position, width and height specified using the
color specified. | ListBase | |
| drawItem(item:IListItemRenderer, selected:Boolean = false, highlighted:Boolean = false, caret:Boolean = false, transition:Boolean = false):void
Draws the renderer with indicators
that it is highlighted, selected, or the caret. | ListBase | |
|
Draws a row background
at the position and height specified. | List | |
|
Draws any alternating row colors, borders and backgrounds for the rows. | ListBase | |
| drawSelectionIndicator(indicator:Sprite, x:Number, y:Number, width:Number, height:Number, color:uint, itemRenderer:IListItemRenderer):void
Draws the selection indicator into the given Sprite
at the position, width and height specified using the
color specified. | ListBase | |
|
Stops the editing of an item in the data provider. | List | |
|
Tries to find the next item in the data provider that
starts with the character in the eventCode parameter. | ListBase | |
|
Cleans up after a data change effect has finished running
by restoring the original collection and iterator and removing
any cached values used by the effect. | ListBase | |
|
Sets selected items based on the caretIndex and
anchorIndex properties. | ListBase | |
|
The event handler called when a UIComponent object gets focus. | UIComponent | |
|
The event handler called when a UIComponent object loses focus. | UIComponent | |
|
Retrieves an already-created item renderer not currently in use. | ListBase | |
|
The column for the data provider item at the given index. | ListBase | |
|
The row for the data provider item at the given index. | ListBase | |
|
Initializes the implementation and storage of some of the less frequently
used advanced layout features of a component. | UIComponent | |
|
Finalizes the initialization of this component. | UIComponent | |
|
Initializes this component's accessibility code. | UIComponent | |
|
Initiates a data change effect when there have been changes
in the data provider. | ListBase | |
Initializes a TreeListData object that is used by the tree item renderer. | Tree | ||
|
Helper method to invalidate parent size and display list if
this object affects its layout (includeInLayout is true). | UIComponent | |
|
Typically overridden by components containing UITextField objects,
where the UITextField object gets focus. | UIComponent | |
|
Returns true if an item renderer is no longer being positioned
by the list's layout algorithm while a data change effect is
running as a result of a call to the unconstrainRenderer() method. | ListBase | |
|
Returns a Point containing the columnIndex and rowIndex of an
item renderer. | ListBase | |
|
Determines the UID for a data provider item. | ListBase | |
|
The event handler called for a keyDown event. | UIComponent | |
|
The event handler called for a keyUp event. | UIComponent | |
|
Responds to size changes by setting the positions and sizes
of this control's borders. | ScrollControlBase | |
|
Positions the item editor instance at the suggested position
with the suggested dimensions. | List | |
[覆寫]
Creates a new TreeListData instance and populates the fields based on
the input data provider item. | Tree | ||
| makeRowsAndColumns(left:Number, top:Number, right:Number, bottom:Number, firstColumn:int, firstRow:int, byCount:Boolean = false, rowsNeeded:uint = 0):Point
Make enough rows and columns to fill the area
described by left, top, right, bottom. | ListBase | |
| [覆寫]
Calculates the measured width and height of the component based
on the rowCount,
columnCount, rowHeight and
columnWidth properties. | ListBase | |
|
Handles MouseEvent.MOUSE_CLICK events from any mouse
targets contained in the list including the renderers. | ListBase | |
|
Handles MouseEvent.MOUSE_DOUBLE_CLICK events from any
mouse targets contained in the list including the renderers. | ListBase | |
|
Handles MouseEvent.MOUSE_DOWN events from any mouse
targets contained in the list including the renderers. | ListBase | |
|
Determines which item renderer is under the mouse. | ListBase | |
|
Handles MouseEvent.MOUSE_MOVE events from any mouse
targets contained in the list including the renderers. | ListBase | |
|
Handles MouseEvent.MOUSE_OUT events from any mouse targets
contained in the list including the renderers. | ListBase | |
|
Handles MouseEvent.MOUSE_OVER events from any mouse
targets contained in the list, including the renderers. | ListBase | |
|
Handles MouseEvent.MOUSE_DOWN events from any mouse
targets contained in the list including the renderers. | ListBase | |
| [覆寫]
Handles mouseWheel events by changing scroll positions. | ListBase | |
|
Move the selection and highlight indicators horizontally. | ListBase | |
|
Move the selection and highlight indicators vertically. | ListBase | |
|
Move a row vertically, and update the rowInfo record. | ListBase | |
|
Moves the selection in a horizontal direction in response
to the user selecting items using the left arrow or right arrow
keys and modifiers such as the Shift and Ctrl keys. | ListBase | |
|
Moves the selection in a vertical direction in response
to the user selecting items using the up arrow or down arrow
Keys and modifiers such as the Shift and Ctrl keys. | ListBase | |
|
Prepares the data effect for the collection event. | ListBase | |
|
Called by the updateDisplayList() method to remove existing item renderers
and clean up various caching structures when the renderer changes. | ListBase | |
|
Update the keys in the visibleData hash table. | ListBase | |
|
Remove a row from the arrays that store references to the row. | ListBase | |
|
Cleans up selection highlights and other associated graphics
for a given item in the data provider. | ListBase | |
|
This method is called when a UIComponent is constructed,
and again whenever the ResourceManager dispatches
a "change" Event to indicate
that the localized resources have changed in some way. | UIComponent | |
|
Remove the requested number of rows from the beginning of the
arrays that store references to the rows. | ListBase | |
|
Determines if there is enough space in this component to display
a given scrollbar. | ScrollControlBase | |
|
Default event handler for the scroll event. | ScrollControlBase | |
|
Adjusts the renderers in response to a change
in scroll position. | ListBase | |
|
Returns the data provider index for the item at the first visible
row and column for the given scroll positions. | ListBase | |
|
Adjusts the renderers in response to a change
in scroll position. | ListBase | |
|
The default failure handler when a seek fails due to a page fault. | ListBase | |
|
The default result handler when a seek fails due to a page fault. | ListBase | |
|
Seek to a position, and handle an ItemPendingError if necessary. | ListBase | |
| selectItem(item:IListItemRenderer, shiftKey:Boolean, ctrlKey:Boolean, transition:Boolean = true):Boolean
Updates the set of selected items given that the item renderer provided
was clicked by the mouse and the keyboard modifiers are in the given
state. | ListBase | |
|
Sets the rowCount property without causing
invalidation or setting the explicitRowCount
property, which permanently locks in the number of rows. | ListBase | |
|
Sets the rowHeight property without causing invalidation or
setting of explicitRowHeight which
permanently locks in the height of the rows. | ListBase | |
|
Causes the ScrollControlBase to show or hide scrollbars based
on the parameters passed in. | ScrollControlBase | |
|
Specifies a transform stretch factor in the horizontal and vertical direction. | UIComponent | |
|
Shift a row in the arrays that reference rows. | ListBase | |
|
This method is called when a state changes to check whether
state-specific styles apply to this component. | UIComponent | |
|
Determine the height of the requested set of rows. | ListBase | |
|
Remove all remaining rows from the end of the
arrays that store references to the rows. | ListBase | |
|
Find an item renderer based on its UID if it is visible. | ListBase | |
| [覆寫]
Adds or removes item renderers if the number of displayable items
changed. | ListBase | |
|
Refreshes all rows. | ListBase | |
事件
| 事件 | 摘要 | 定義自 | ||
|---|---|---|---|---|
| [廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。 | EventDispatcher | ||
| Dispatched when the component is added to a container as a content child by using the addChild(), addChildAt(), addElement(), or addElementAt() method. | UIComponent | ||
| 當顯示物件加入顯示清單中時傳送。 | DisplayObject | ||
| 會在顯示物件加入舞台上的顯示清單時，以直接或是透過加入包含該顯示物件之子樹狀結構的方式傳送。 | DisplayObject | ||
| Dispatched when the selectedIndex or selectedItem property changes as a result of user interaction. | ListBase | ||
| 當使用者從文字快顯選單中選取「清除」(或「刪除」) 時傳送。 | InteractiveObject | ||
| 會當使用者在相同的 InteractiveObject 上方按下並放開使用者的指向裝置主按鈕時傳送。 | InteractiveObject | ||
| 當使用者手勢在 AIR 應用程式中觸發與此互動式物件相關聯的快顯選單時傳送。 | InteractiveObject | ||
| 當使用者針對複製作業啟動平台特有的快速鍵組合或從文字快顯選單中選取「複製」時傳送。 | InteractiveObject | ||
| Dispatched when the component has finished its construction, property processing, measuring, layout, and drawing. | UIComponent | ||
| Dispatched after the view state has changed. | UIComponent | ||
| Dispatched after the currentState property changes, but before the view state changes. | UIComponent | ||
| 當使用者針對剪下作業啟動平台特有的快速鍵組合或從文字快顯選單中選取「剪下」時傳送。 | InteractiveObject | ||
| Dispatched when the data property changes. | ListBase | ||
| [廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。 | EventDispatcher | ||
| 在 InteractiveObject 物件的 doubleClickEnabled 旗標設為 true 的情況下，當使用者在相同的物件上方連續兩次快速按下並放開指標裝置主要按鈕時傳送。 | InteractiveObject | ||
| Dispatched by the drag initiator (the component that is the source of the data being dragged) when the drag operation completes, either when you drop the dragged data onto a drop target or when you end the drag-and-drop operation without performing a drop. | UIComponent | ||
| Dispatched by the drop target when the user releases the mouse over it. | UIComponent | ||
| Dispatched by a component when the user moves the mouse over the component during a drag operation. | UIComponent | ||
| Dispatched by the component when the user drags outside the component, but does not drop the data onto the target. | UIComponent | ||
| Dispatched by a component when the user moves the mouse while over the component during a drag operation. | UIComponent | ||
| Dispatched by the drag initiator when starting a drag operation. | UIComponent | ||
| Dispatched after an effect ends. | UIComponent | ||
| Dispatched just before an effect starts. | UIComponent | ||
| Dispatched after an effect is stopped, which happens only by a call to stop() on the effect. | UIComponent | ||
| [廣播事件] 當播放磁頭進入新影格時傳送。 | DisplayObject | ||
| Dispatched after the component has entered a view state. | UIComponent | ||
| [廣播事件] 當播放磁頭結束目前影格時傳送。 | DisplayObject | ||
| Dispatched just before the component exits a view state. | UIComponent | ||
| 當顯示物件取得焦點之後傳送。 | InteractiveObject | ||
| 當顯示物件失去焦點時傳送。 | InteractiveObject | ||
| [廣播事件] 在影格顯示物件的建構函式執行之後，且影格指令碼執行之前傳送。 | DisplayObject | ||
| 當使用者沿著觸控面與 InteractiveObject 實體建立接觸點 (例如沿著 Apple TV 的 Siri Remote 觸控面點選)，某些裝置可能也會將此接觸解譯為數個觸控事件的組合。 | InteractiveObject | ||
| 當使用在觸控裝置上的同一個 InteractiveObject 實體上按下兩個接觸點後送出 (例如在行動電話或平板電腦觸控螢幕的顯示物件上方，以兩支手指按下後鬆開)。 | InteractiveObject | ||
| 當使用者在觸控裝置上，將接觸點移動到 InteractiveObject 實體上方後傳送 (例如，在行動電話或平板電腦觸控螢幕的顯示物件上，由左向右移動手指)。 | InteractiveObject | ||
| 當使用者在 InteractiveObject 實體的接觸點上做出旋轉手勢後傳送 (例如兩指觸摸行動電話或平板電腦的觸控螢幕，然後手指在顯示物件上旋轉)。 | InteractiveObject | ||
| 當使用者在與 InteractiveObject 實體的某個接觸點上做出揮動手勢後傳送 (例如，三指併在一起觸碰行動電話或平板電腦的觸控螢幕，然後在顯示物件上快速平行移動手指)。 | InteractiveObject | ||
| 當使用者與 InteractiveObject 實體建立接觸點，然後在觸控裝置上點一下後送出 (例如，將多根手指放到行動電話或平板電腦觸控螢幕的顯示物件上以開啟選單，然後其中一根手點一下，選取選單項目)。 | InteractiveObject | ||
| 當使用者在 InteractiveObject 實體的某個接觸點上做出放大縮小手勢後傳送 (例如兩指併在一起觸摸行動電話或平板電腦的觸控螢幕，然後手指在顯示物件上快速張開)。 | InteractiveObject | ||
| Dispatched when an object's state changes from visible to invisible. | UIComponent | ||
| 這個事件會送出至任何支援 IME 內嵌輸入的用戶端應用程式。 | InteractiveObject | ||
| Dispatched when the component has finished its construction and has all initialization properties set. | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation failed. | UIComponent | ||
| Dispatched when the user clicks on an item in the control. | ListBase | ||
| Dispatched when a branch is closed or collapsed. | Tree | |||
| Dispatched when the user double-clicks on an item in the control. | ListBase | ||
| Dispatched when the editedItemPosition property is set and the item can be edited. | List | ||
| Dispatched when the user releases the mouse button while over an item, tabs to the List or within the List, or in any other way attempts to edit an item. | List | ||
| Dispatched when an item editing session is ending for any reason. | List | ||
| Dispatched when an item renderer gets focus, which can occur if the user clicks on an item in the List control or navigates to the item using a keyboard. | List | ||
| Dispatched when an item renderer loses the focus, which can occur if the user clicks another item in the List control or outside the list, or uses the keyboard to navigate to another item in the List control or outside the List control. | List | ||
| Dispatched when a branch is opened or expanded. | Tree | |||
| Dispatched when a branch open or close is initiated. | Tree | |||
| Dispatched when the user rolls the mouse pointer out of an item in the control. | ListBase | ||
| Dispatched when the user rolls the mouse pointer over an item in the control. | ListBase | ||
| 會當使用者按下按鍵時傳送。 | InteractiveObject | ||
| 當使用者嘗試使用鍵盤瀏覽變更焦點時傳送。 | InteractiveObject | ||
| 會當使用者放開按鍵時傳送。 | InteractiveObject | ||
| 當使用者在相同的 InteractiveObject 上方按下並放開使用者的指向裝置中間按鈕時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置的中間按鈕移至 InteractiveObject 實體上方按下時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置按鈕移至 InteractiveObject 實體上方放開時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置按鈕移至 InteractiveObject 實體上方按下時傳送。 | InteractiveObject | ||
| Dispatched from a component opened using the PopUpManager when the user clicks outside it. | UIComponent | ||
| 會當使用者嘗試使用指向裝置變更焦點時傳送。 | InteractiveObject | ||
| 會當指向裝置停在 InteractiveObject 上方的情況下使用者將其移動時傳送。 | InteractiveObject | ||
| 會當使用者將指向裝置移開 InteractiveObject 實體時傳送。 | InteractiveObject | ||
| 會當使用者將指向裝置移至 InteractiveObject 實體上方時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置按鈕移至 InteractiveObject 實體上方放開時傳送。 | InteractiveObject | ||
| 當滑鼠滾輪在 InteractiveObject 實體上方轉動時傳送。 | InteractiveObject | ||
| Dispatched from a component opened using the PopUpManager when the user scrolls the mouse wheel outside it. | UIComponent | ||
| Dispatched when the object has moved. | UIComponent | ||
| 當使用者釋放手勢時，由拖曳初始程式 InteractiveObject 傳送。 | InteractiveObject | ||
| 已在目標 InteractiveObject 上放下拖曳的物件，而且已呼叫 DragManager.acceptDragDrop() 接受該放開的資料時，由此目標 InteractiveObject 傳送。 | InteractiveObject | ||
| 當手勢進入 InteractiveObject 的邊界時，由此 InteractiveObject 傳送。 | InteractiveObject | ||
| 當手勢離開 InteractiveObject 的邊界時，由此 InteractiveObject 傳送。 | InteractiveObject | ||
| 當拖曳手勢還留在 InteractiveObject 的邊界內，由此 InteractiveObject 持續傳送。 | InteractiveObject | ||
| 在呼叫 DragManager.doDrag() 進行拖曳作業初期，由指定做為拖曳初始程式的 InteractiveObject 傳送。 | InteractiveObject | ||
| 在呼叫 DragManager.doDrag() 進行拖曳作業期間，由指定做為拖曳初始程式的 InteractiveObject 傳送。 | InteractiveObject | ||
| 當使用者針對貼上作業啟動平台特有的快速鍵組合或從文字快顯選單中選取「貼上」時傳送。 | InteractiveObject | ||
| Dispatched at the beginning of the component initialization sequence. | UIComponent | ||
| 在使用者將作用中觸控筆往下移至超過螢幕鄰近偵測邊框時傳送。 | InteractiveObject | ||
| 在使用者將作用中觸控筆提到螢幕鄰近偵測邊框時傳送。 | InteractiveObject | ||
| 在使用者將作用中觸控筆移到螢幕上方，而其餘仍在鄰近偵測邊框內時傳送。 | InteractiveObject | ||
| 在使用者將作用中觸控筆移出這個 InteractiveObject 之外，而其餘仍在螢幕的鄰近偵測邊框內時傳送。 | InteractiveObject | ||
| 在使用者直接將作用中觸控筆移到這個 InteractiveObject 上方，而其餘仍在螢幕的鄰近偵測邊框內時傳送。 | InteractiveObject | ||
| 在使用者將作用中觸控筆移出這個 InteractiveObject 及其任一子系之外，而其餘仍在螢幕的鄰近偵測邊框內時傳送。 | InteractiveObject | ||
| 在使用者透過這個 InteractiveObject，從顯示清單中後代的物件樹狀結構之外移動作用中觸控筆時傳送 (而其餘仍在螢幕的鄰近偵測邊框內)。 | InteractiveObject | ||
| 當使用者第一次按下 InteractiveObject 實體上方的按鈕，然後將指向裝置滑出 InteractiveObject 實體之後即放開指向裝置上的按鈕時傳送。 | InteractiveObject | ||
| Dispatched when the component is removed from a container as a content child by using the removeChild(), removeChildAt(), removeElement(), or removeElementAt() method. | UIComponent | ||
| 會當顯示物件將要從顯示清單移除時傳送。 | DisplayObject | ||
| 會在顯示物件即將從顯示清單移除時，以直接或是透過移除包含該顯示物件之子樹狀結構的方式傳送。 | DisplayObject | ||
| [廣播事件] 當顯示清單將要更新和顯示時傳送。 | DisplayObject | ||
| Dispatched when the component is resized. | UIComponent | ||
| 當使用者在相同的 InteractiveObject 上方按下並放開使用者的指向裝置右邊按鈕時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置按鈕移至 InteractiveObject 實體上方按下時傳送。 | InteractiveObject | ||
| 當使用者將指向裝置按鈕移至 InteractiveObject 實體上方放開時傳送。 | InteractiveObject | ||
| 會當使用者將指向裝置移開 InteractiveObject 實體時傳送。 | InteractiveObject | ||
| 會當使用者將指向裝置移至 InteractiveObject 實體上方時傳送。 | InteractiveObject | ||
| Dispatched when the content is scrolled. | ScrollControlBase | ||
| 當使用者針對全選作業啟動平台特有的快速鍵組合或從文字快顯選單中選取「全選」時傳送。 | InteractiveObject | ||
| Dispatched when an object's state changes from invisible to visible. | UIComponent | ||
| 升起顯示軟體鍵盤之後立即傳送。 | InteractiveObject | ||
| 升起顯示軟體鍵盤前立即傳送。 | InteractiveObject | ||
| 降下隱藏軟體鍵盤之後立即傳送。 | InteractiveObject | ||
| Dispatched after the component has entered a new state and any state transition animation to that state has finished playing. | UIComponent | ||
| Dispatched when a component interrupts a transition to its current state in order to switch to a new state. | UIComponent | ||
| 在物件的 tabChildren 旗標值變更時傳送。 | InteractiveObject | ||
| 在物件的 tabEnabled 旗標變更時傳送。 | InteractiveObject | ||
| 在物件的 tabIndex 屬性值變更時傳送。 | InteractiveObject | ||
| 當使用者輸入一或多文字的字元時送出。 | InteractiveObject | ||
| Dispatched by the component when it is time to create a ToolTip. | UIComponent | ||
| Dispatched by the component when its ToolTip has been hidden and is to be discarded soon. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be hidden. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be shown. | UIComponent | ||
| Dispatched by the component when its ToolTip has been shown. | UIComponent | ||
| Dispatched by a component whose toolTip property is set, as soon as the user moves the mouse over it. | UIComponent | ||
| 當使用者在第一次接觸觸控裝置後傳送 (例如手指觸摸行動電話或平板電腦的觸控螢幕)。 | InteractiveObject | ||
| 當使用者在觸控裝置上移除接觸點後傳送 (例如在行動電話或平板電腦觸控螢幕上移開手指)。 | InteractiveObject | ||
| A non-cancellable event, dispatched by a component when it is done responding to a touch interaction user gesture. | UIComponent | ||
| A non-cancellable event, dispatched by a component when it starts responding to a touch interaction user gesture. | UIComponent | ||
| A cancellable event, dispatched by a component in an attempt to respond to a touch interaction user gesture. | UIComponent | ||
| 當使用者觸控裝置時傳送，並且連續不斷地傳送，直到接觸點移除為止。 | InteractiveObject | ||
| 當使用者在觸控裝置中，將接觸點移出 InteractiveObject 實體後送出 (例如在行動電話或平板電腦的觸控螢幕上，將手指從顯示物件移至另一個顯示物件)。 | InteractiveObject | ||
| 當使用者在觸控裝置中將接觸點移至 InteractiveObject 實體上方後送出 (例如在行動電話或平板電腦的觸控螢幕上，將手指從顯示物件外面的某一點，往顯示物件上方拖曳)。 | InteractiveObject | ||
| 當使用者在觸控裝置上，將接觸點從 InteractiveObject 實體移出後送出 (例如，在行動電話或平板電腦的觸控螢幕上，將手指從顯示物件上方拖曳到顯示物件以外)。 | InteractiveObject | ||
| 當使用者在觸控裝置中將接觸點移至 InteractiveObject 實體上方後送出 (例如在行動電話或平板電腦的觸控螢幕上，將手指從顯示物件外面的某一點，往顯示物件上方拖曳)。 | InteractiveObject | ||
| 當使用者在觸控裝置的同一個 InteractiveObject 實體上，在原先開始接觸點放開後送出 (例如在行動電話或平板電腦觸控螢幕上的顯示物件上方，以手指按下某個點後又鬆開)。 | InteractiveObject | ||
| Dispatched when an object has had its commitProperties(), measure(), and updateDisplayList() methods called (if needed). | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation succeeded. | UIComponent | ||
| Dispatched when values are changed programmatically or by user interaction. | UIComponent | ||
樣式
樣式可分為一般樣式及與特定主題關聯的樣式兩種。如果是一般樣式，可以與任何主題搭配使用。如果是與特定主題關聯的樣式，只有在您的應用程式使用特定主題時才能使用該樣式。
一般樣式
| 樣式 | 說明 | 定義自 | ||
|---|---|---|---|---|
alternatingItemColors | 類型: Array 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Colors for rows in an alternating pattern. Value can be an Array of two of more colors. Used only if the backgroundColor property is not specified.
預設值為 undefined。 | Tree | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
| 類型: Class CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The border skin class of the component. | ScrollControlBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Bounding box style. | ScrollControlBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The vertical distance, in pixels, from the bottom edge of the component to the bottom edge of its parent container's content area. | UIComponent | ||
| 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of text in the component, including the component label. | ScrollControlBase | ||
defaultLeafIcon | 類型: Class 格式: EmbeddedFile CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the default icon for a leaf item. In MXML, you can use the following syntax to set this property: defaultLeafIcon="@Embed(source='c.jpg');"
The default value is the "TreeNodeIcon" symbol in the Assets.swf file.
| Tree | ||
depthColors | 類型: Array 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Array of colors used in the Tree control, in descending order. 預設值為 undefined。 | Tree | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4 執行階段版本: Flash10, AIR 1.5 The directionality of the text displayed by the component. | ScrollControlBase | ||
| 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of text in the component if it is disabled. | ScrollControlBase | ||
disclosureClosedIcon | 類型: Class 格式: EmbeddedFile CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the icon that is displayed next to a parent item that is closed so that its children are not displayed (the subtree is collapsed). The default value is the "TreeDisclosureClosed" symbol in the Assets.swf file. | Tree | ||
disclosureOpenIcon | 類型: Class 格式: EmbeddedFile CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the icon that is displayed next to a parent item that is open so that its children are displayed. The default value is the "TreeDisclosureOpen" symbol in the Assets.swf file. | Tree | ||
| 類型: Class CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The skin to use to indicate where a dragged item can be dropped. | ListBase | ||
| 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of the component highlight when validation fails. | UIComponent | ||
| 類型: Number CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the alpha transparency value of the focus skin. | ScrollControlBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Blend mode used by the focus rectangle. | UIComponent | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies which corners of the focus rectangle should be rounded. | ScrollControlBase | ||
| 類型: Class CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Skin used to draw the focus rectangle. | UIComponent | ||
| 類型: Number 格式: Length CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Thickness, in pixels, of the focus rectangle outline. | UIComponent | ||
folderClosedIcon | 類型: Class 格式: EmbeddedFile CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the folder closed icon for a branch item of the tree. In MXML, you can use the following syntax to set this property: folderClosedIcon="@Embed(source='b.jpg');"
The default value is the "TreeFolderClosed" symbol in the Assets.swf file.
| Tree | ||
folderOpenIcon | 類型: Class 格式: EmbeddedFile CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the folder open icon for a branch item of the tree. In MXML, you can use the following syntax to set this property: folderOpenIcon="@Embed(source='a.jpg');"
The default value is the "TreeFolderOpen" symbol in the Assets.swf file.
| Tree | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Sets the antiAliasType property of internal TextFields. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Name of the font to use. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Sets the gridFitType property of internal TextFields that represent text in Flex controls. | ScrollControlBase | ||
| 類型: Number CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Sets the sharpness property of internal TextFields that represent text in Flex controls. | ScrollControlBase | ||
| 類型: Number 格式: Length CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Height of the text, in pixels. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Determines whether the text is italic font. | ScrollControlBase | ||
| 類型: Number CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Sets the thickness property of internal TextFields that represent text in Flex controls. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Determines whether the text is boldface. | ScrollControlBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The horizontal distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Style name for horizontal scrollbar. | ScrollControlBase | ||
indentation | 類型: Number CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Indentation for each tree level, in pixels. 預設值為 17。 | Tree | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4.5 執行階段版本: Flash10, AIR 2.5 The primary interaction mode for this component. | UIComponent | ||
| 類型: Boolean CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 A Boolean value that indicates whether kerning is enabled ( true) or disabled (false). | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4.1 執行階段版本: Flash10, AIR 1.5 Specifies the desired layout direction of a component. | UIComponent | ||
| 類型: Number 格式: Length CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Additional vertical space between lines of text. | ScrollControlBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The horizontal distance, in pixels, from the left edge of the component to the left edge of its parent container's content area. | UIComponent | ||
| 類型: Number CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The number of additional pixels to appear between each character. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4 執行階段版本: Flash10, AIR 1.5 The locale of the text displayed by this component. | ScrollControlBase | ||
openDuration | 類型: Number 格式: Time CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Length of an open or close transition, in milliseconds. The default value for the Halo theme is 250.
The default value for the Spark theme is 0.
| Tree | ||
openEasingFunction | 類型: Function CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Easing function to control component tweening. The default value is | Tree | ||
| 類型: Number 格式: Length CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The number of pixels between the bottom of the row and the bottom of the renderer in the row. | ListBase | ||
paddingLeft | 類型: Number 格式: Length CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Number of pixels between the component's left border and the left edge of its content area. The default value is 0. The default value for a Button control in the Halo theme is 10 and in the Spark theme is 6. The default value for the ComboBox control is 5. The default value for the Form container is 16. The default value for the Tree control is 2. | Tree | ||
paddingRight | 類型: Number 格式: Length CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Number of pixels between the component's right border and the right edge of its content area. The default value is 0. The default value for a Button control in the Halo theme is 10 and in the Spark theme is 6. The default value for the ComboBox control is 5. The default value for the Form container is 16. | Tree | ||
| 類型: Number 格式: Length CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The number of pixels between the top of the row and the top of the renderer in the row. | ListBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The horizontal distance, in pixels, from the right edge of the component to the right edge of its parent container's content area. | UIComponent | ||
rollOverColor | 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of the background when the user rolls over the link. The default value for the Halo theme is 0xB2E1FF.
The default value for the Spark theme is 0xCEDBEF.
| Tree | ||
selectionColor | 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of the background when the user selects the link. The default value for the Halo theme is 0x7FCEFF.
The default value for the Spark theme is 0xA8C6EE.
| Tree | ||
selectionDisabledColor | 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Specifies the disabled color of a list item. 預設值為 0xDDDDDD。 | Tree | ||
| 類型: Number 格式: Time CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The duration of the selection effect. | ListBase | ||
selectionEasingFunction | 類型: Function CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Reference to an easingFunction function used for controlling programmatic tweening.
The default value is | Tree | ||
| 類型: Boolean CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4.5 執行階段版本: Flash10, AIR 1.5 Show the error border or skin when this component is invalid | UIComponent | ||
| 類型: Boolean CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 4.5 執行階段版本: Flash10, AIR 1.5 Show the error tip when this component is invalid and the user rolls over it | UIComponent | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Alignment of text within a container. | ScrollControlBase | ||
| 類型: String CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Determines whether the text is underlined. | ScrollControlBase | ||
| 類型: Class CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 4 執行階段版本: Flash10, AIR 1.5 The class implementing IUITextField that is used by this component to render text. | ScrollControlBase | ||
| 類型: Number 格式: Length CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Offset of first line of text from the left side of the container, in pixels. | ScrollControlBase | ||
textRollOverColor | 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of the text when the user rolls over a row. The default value for the Halo theme is 0x2B333C.
The default value for the Spark theme is 0x000000.
| Tree | ||
textSelectedColor | 類型: uint 格式: Color CSS 繼承: 是 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Color of the text when the user selects a row. The default value for the Halo theme is 0x2B333C.
The default value for the Spark theme is 0x000000.
| Tree | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The vertical distance, in pixels, from the top edge of the component to the top edge of its parent container's content area. | UIComponent | ||
| 類型: Boolean CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 A flag that controls whether items are highlighted as the mouse rolls over them. | ListBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The vertical alignment of a renderer in a row. | ListBase | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 The vertical distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
| 類型: String CSS 繼承: 否 語言版本: ActionScript 3.0 產品版本: Flex 3 執行階段版本: Flash9, AIR 1.1 Style name for vertical scrollbar. | ScrollControlBase | ||
Spark 主題樣式
Halo 主題樣式
屬性詳細資訊
dataDescriptor | 屬性 |
dataDescriptor:mx.controls.treeClasses:ITreeDataDescriptor| 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 |
Returns the current ITreeDataDescriptor.
預設值為 DefaultDataDescriptor。
實作
public function get dataDescriptor():mx.controls.treeClasses:ITreeDataDescriptor public function set dataDescriptor(value:mx.controls.treeClasses:ITreeDataDescriptor):voiddataProvider | 屬性 |
dataProvider:Object[覆寫] | 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 |
An object that contains the data to be displayed. When you assign a value to this property, the Tree class handles the source data object as follows:
- A String containing valid XML text is converted to an XMLListCollection.
- An XMLNode is converted to an XMLListCollection.
- An XMLList is converted to an XMLListCollection.
- Any object that implements the ICollectionView interface is cast to an ICollectionView.
- An Array is converted to an ArrayCollection.
- Any other type object is wrapped in an Array with the object as its sole entry.
預設值為 null。
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 collectionChange 事件。
實作
override public function get dataProvider():Object override public function set dataProvider(value:Object):voiddragMoveEnabled | 屬性 |
dragMoveEnabled:Boolean[覆寫] | 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 |
Indicates that items can be moved instead of just copied from the Tree control as part of a drag-and-drop operation.
預設值為 true。
實作
override public function get dragMoveEnabled():Boolean override public function set dragMoveEnabled(value:Boolean):voidfirstVisibleItem | 屬性 |
firstVisibleItem: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 item that is currently displayed in the top row of the tree. Based on how the branches have been opened and closed and scrolled, the top row might hold, for example, the ninth item in the list of currently viewable items which in turn represents some great-grandchild of the root. Setting this property is analogous to setting the verticalScrollPosition of the List control. If the item isn't currently viewable, for example, because it is under a nonexpanded item, setting this property has no effect.
NOTE: In Flex 1.0 this property was typed as XMLNode although it really was either an XMLNode or TreeNode. In 2.0, it is now the generic type Object and will return an object of the same type as the data contained in the dataProvider.
The default value is the first item in the Tree control.
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 firstVisibleItemChanged 事件。
實作
public function get firstVisibleItem():Object public function set firstVisibleItem(value:Object):voidhasRoot | 屬性 |
hasRoot:Boolean [唯讀] | 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 |
Indicates that the current dataProvider has a root item; for example, a single top node in a hierarchical structure. XML and Object are examples of types that have a root. Lists and arrays do not.
實作
public function get hasRoot():Boolean相關 API 元素
itemIcons | 屬性 |
public var itemIcons: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 |
An object that specifies the icons for the items. Each entry in the object has a field name that is the item UID and a value that is an an object with the following format:
{iconID: Class, iconID2: Class}
The iconID field value is the class of the icon for
a closed or leaf item and the iconID2 is the class
of the icon for an open item.
This property is intended to allow initialization of item icons.
Changes to this array after initialization are not detected
automatically.
Use the setItemIcon() method to change icons dynamically.
預設值為 undefined。
相關 API 元素
maxHorizontalScrollPosition | 屬性 |
maxHorizontalScrollPosition:Number[覆寫] | 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 maximum value for the maxHorizontalScrollPosition property for the Tree control.
Unlike the maxHorizontalScrollPosition property
in the List control, this property is modified by the Tree control as
items open and close and as items in the tree otherwise become
visible or are hidden (for example, by scrolling).
If you set this property to the widest known item in the dataProvider,
the Tree control modifies it so that even if that widest item
is four levels down in the tree, the user can scroll to see it.
As a result, although you read back the same value for the
maxHorizontalScrollPosition property that you set,
it isn't necessarily the actual value used by the Tree control.
預設值為 0。
實作
override public function get maxHorizontalScrollPosition():Number override public function set maxHorizontalScrollPosition(value:Number):voidopenItems | 屬性 |
showRoot | 屬性 |
showRoot:Boolean| 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 |
Sets the visibility of the root item.
If the dataProvider data has a root node, and this is set to
false, the Tree control does not display the root item.
Only the decendants of the root item are displayed.
This flag has no effect on non-rooted dataProviders, such as List and Array.
預設值為 true。
實作
public function get showRoot():Boolean public function set showRoot(value:Boolean):void相關 API 元素
建構函式詳細資料
Tree | () | 建構函式 |
public function Tree()| 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.
方法詳細資訊
dragCompleteHandler | () | 方法 |
dragDropHandler | () | 方法 |
override protected function dragDropHandler(event:DragEvent):void| 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 |
Handles DragEvent.DRAG_DROP events. This method hides
the drop feedback by calling the hideDropFeedback() method.
If the action is a COPY,
then this method makes a deep copy of the object
by calling the ObjectUtil.copy() method,
and replaces the copy's uid property (if present)
with a new value by calling the UIDUtil.createUID() method.
參數
event:DragEvent — The DragEvent object.
|
相關 API 元素
expandChildrenOf | () | 方法 |
public function expandChildrenOf(item:Object, open:Boolean):void| 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 |
Opens or closes all the tree items below the specified item.
If you set dataProvider and then immediately call
expandChildrenOf() you may not see the correct behavior.
You should either wait for the component to validate
or call the validateNow() method.
參數
item:Object — The starting item.
| |
open:Boolean — Toggles an open or close operation.
Specify true to open the items, and false to close them.
|
expandItem | () | 方法 |
public function expandItem(item:Object, open:Boolean, animate:Boolean = false, dispatchEvent:Boolean = false, cause:Event = null):void| 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 |
Opens or closes a branch item.
When a branch item opens, it restores the open and closed states
of its child branches if they were already opened.
If you set dataProvider and then immediately call
expandItem() you may not see the correct behavior.
You should either wait for the component to validate
or call validateNow().
參數
item:Object — Item to affect.
| |
open:Boolean — Specify true to open, false to close.
| |
animate:Boolean (default = false)true to animate the transition. (Note:
If a branch has over 20 children, it does not animate the first time it opens,
for performance reasons.)
| |
dispatchEvent:Boolean (default = false)open event
after the open animation is complete.
| |
cause:Event (default = null) |
getParentItem | () | 方法 |
public function getParentItem(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 |
Returns the known parent of a child item. This method returns a value
only if the item was or is currently visible. Top level items have a
parent with the value null.
參數
item:Object — item for which to get the parent.
|
* — The parent of the item.
|
initListData | () | 方法 |
protected function initListData(item:Object, treeListData:mx.controls.treeClasses:TreeListData):void| 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 |
Initializes a TreeListData object that is used by the tree item renderer.
參數
item:Object — The item to be rendered.
| |
treeListData:mx.controls.treeClasses:TreeListData — The TreeListDataItem to use in rendering the item.
|
isItemOpen | () | 方法 |
makeListData | () | 方法 |
override protected function makeListData(data:Object, uid:String, rowNum:int):BaseListData| 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 |
Creates a new TreeListData instance and populates the fields based on the input data provider item.
參數
data:Object — The data provider item used to populate the ListData.
| |
uid:String — The UID for the item.
| |
rowNum:int — The index of the item in the data provider.
|
BaseListData — A newly constructed ListData object.
|
setItemIcon | () | 方法 |
public function setItemIcon(item:Object, iconID:Class, iconID2:Class):void| 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 |
Sets the associated icon for the item. Calling this method overrides the
iconField and iconFunction properties for
this item if it is a leaf item. Branch items don't use the
iconField and iconFunction properties.
They use the folderOpenIcon and folderClosedIcon properties.
參數
item:Object — Item to affect.
| |
iconID:Class — Linkage ID for the closed (or leaf) icon.
| |
iconID2:Class — Linkage ID for the open icon.
|
事件詳細資訊
itemClose | 事件 |
事件物件類型:
屬性 TreeEvent.type =
mx.events.TreeEvent屬性 TreeEvent.type =
mx.events.TreeEvent.ITEM_CLOSE| 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 |
Dispatched when a branch is closed or collapsed.
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 |
itemOpen | 事件 |
事件物件類型:
屬性 TreeEvent.type =
mx.events.TreeEvent屬性 TreeEvent.type =
mx.events.TreeEvent.ITEM_OPEN| 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 |
Dispatched when a branch is opened or expanded.
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 |
itemOpening | 事件 |
事件物件類型:
屬性 TreeEvent.type =
mx.events.TreeEvent屬性 TreeEvent.type =
mx.events.TreeEvent.ITEM_OPENING| 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 |
Dispatched when a branch open or close is initiated.
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 |
範例 如何使用本範例
TreeExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the Halo Tree control. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
[Bindable]
public var selectedNode:XML;
// Event handler for the Tree control change event.
public function treeChanged(evt:Event):void {
selectedNode = Tree(evt.target).selectedItem as XML;
}
]]>
</fx:Script>
<fx:Declarations>
<fx:XMLList id="treeData">
<node label="Mail Box">
<node label="Inbox">
<node label="Marketing"/>
<node label="Product Management"/>
<node label="Personal"/>
</node>
<node label="Outbox">
<node label="Professional"/>
<node label="Personal"/>
</node>
<node label="Spam"/>
<node label="Sent"/>
</node>
</fx:XMLList>
</fx:Declarations>
<s:Panel title="Halo Tree Control Example"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:VGroup left="10" right="10" top="10" bottom="10">
<s:Label width="100%" color="blue"
text="Select a node in the Tree control."/>
<mx:HDividedBox width="100%" height="100%">
<mx:Tree id="myTree" width="50%" height="100%" labelField="@label"
showRoot="false" dataProvider="{treeData}" change="treeChanged(event);"/>
<s:TextArea height="100%" width="50%"
text="Selected Item: {selectedNode.@label}"/>
</mx:HDividedBox>
</s:VGroup>
</s:Panel>
</s:Application>
Tue Jun 12 2018, 03:47 PM Z