| Pacchetto | spark.components |
| Classe | public class List |
| Ereditarietà | List  ListBase SkinnableDataContainer SkinnableContainerBase SkinnableComponent UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Implementa | IFocusManagerComponent |
| Sottoclassi | AttachmentList, AXMDropDownListBase, AXMList, DropDownListBase |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
allowMultipleSelection property.
Note: The Spark list-based controls (the Spark ListBase class and its subclasses
such as ButtonBar, ComboBox, DropDownList, List, and TabBar) do not support the BasicLayout class
as the value of the layout property.
Do not use BasicLayout with the Spark list-based controls. When a layout is specified,
the layout's typicalLayoutElement property should not be set; it's automatically set
to an item renderer created with the List's typicalItem.
To use this component in a list-based component, such as a List or DataGrid, create an item renderer. For information about creating an item renderer, see Custom Spark item renderers.
The List control has the following default characteristics:
| Characteristic | Description |
|---|---|
| Default size | 112 pixels wide by 112 pixels high |
| Minimum size | 112 pixels wide by 112 pixels high |
| Maximum size | 10000 pixels wide and 10000 pixels high |
| Default skin class | spark.skins.spark.ListSkin |
Mostra sintassi MXML
Nascondi sintassi MXMLThe <s:List> tag inherits all of the tag
attributes of its superclass and adds the following tag attributes:
<s:List
Properties
allowMultipleSelection="false"
dragEnabled="false"
dragMoveEnabled="false"
dropEnabled="false"
selectedIndices="null"
selectedItems="null"
useVirtualLayout="true"
Styles
alternatingItemColors="undefined"
borderAlpha="1.0"
borderColor="0#CCCCCC"
borderVisible="true"
contentBackgroundColor="0xFFFFFF"
downColor="0xA8C6EE"
dragIndicator="ListItemDragProxy"
dropIndicatorSkin="ListDropIndicator"
rollOverColor="0xCEDBEF"
selectionColor="0xA8C6EE"
symbolColor="0x000000"
/>
Proprietà MXML predefinitadataProvider
Altri esempi
Elementi API correlati
Proprietà pubbliche
| Proprietà | Definito da | ||
|---|---|---|---|
 | 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
L'implementazione di accessibilità corrente (AccessibilityImplementation) di questa istanza InteractiveObject. | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
Le opzioni di accessibilità correnti di questo oggetto di visualizzazione. | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [sola lettura]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| allowMultipleSelection : Boolean
If true multiple selection is enabled. | List | ||
| alpha : Number
Indica il valore della trasparenza alfa dell'oggetto specificato. | DisplayObject | |
| arrowKeysWrapFocus : Boolean
If true, using arrow keys to navigate within
the component wraps when it hits either end. | ListBase | |
| autoLayout : Boolean
If true, measurement and layout are done
when the position or size of a child is changed. | SkinnableDataContainer | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [sola lettura]
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 [sola lettura]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [sola lettura]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [sola lettura]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [sola lettura]
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 [sola lettura]
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 [override] [sola lettura]
The y-coordinate of the baseline
of the first line of text of the component. | SkinnableComponent | |
| blendMode : String
Un valore della classe BlendMode che specifica il metodo di fusione da utilizzare. | DisplayObject | |
| blendShader : Shader [sola scrittura]
Imposta uno shader utilizzato per la fusione dei colori di primo piano e sfondo. | DisplayObject | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
Specifica la modalità pulsante di questo sprite. | Sprite | |
| cacheAsBitmap : Boolean
Se è impostata su true, nella cache dei runtime Flash viene memorizzata una rappresentazione bitmap interna dell'oggetto di visualizzazione. | DisplayObject | |
| cacheAsBitmapMatrix : Matrix
Se il valore è diverso da null, questo oggetto Matrix definisce il modo in cui viene eseguito il rendering di un oggetto di visualizzazione quando cacheAsBitmap è impostato su true. | DisplayObject | |
| cacheHeuristic : Boolean [sola scrittura]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| caretIndex : Number [sola lettura]
Item that is currently in focus. | ListBase | |
| className : String [sola lettura]
The name of this instance's class, such as "Button". | UIComponent | |
| constructor : Object
Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto. | Object | |
| contentMouseX : Number [sola lettura]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [sola lettura]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contextMenu : NativeMenu
Specifica il menu di scelta rapida associato all'oggetto. | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [sola lettura]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| dataProvider : IList
The data provider for this DataGroup. | SkinnableDataContainer | |
| defaultButton : IFlexDisplayObject
The Button control designated as the default button for the container. | SkinnableContainerBase | |
| 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 [override]
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. | List | ||
| dragMoveEnabled : Boolean
A flag that indicates whether items can be moved instead
of just copied from the control as part of a drag-and-drop
operation. | List | ||
| dropEnabled : Boolean
A flag that indicates whether dragged items can be dropped onto the
control. | List | ||
| dropTarget : DisplayObject [sola lettura]
Specifica l'oggetto di visualizzazione sopra il quale viene trascinato lo sprite o sul quale viene rilasciato. | Sprite | |
| enabled : Boolean
Whether the component can accept user interaction. | UIComponent | |
| 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
Un array indicizzato che contiene ogni oggetto filtro attualmente associato all'oggetto di visualizzazione. | DisplayObject | |
| 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
Specifica se l'oggetto visualizza un rettangolo di attivazione. | InteractiveObject | |
| graphics : Graphics [sola lettura]
Specifica l'oggetto Graphics che appartiene a questo oggetto Sprite, in cui possono essere eseguiti i comandi di disegno vettoriale. | Sprite | |
| hasFocusableChildren : Boolean [override]
A flag that indicates whether this List's focusable item renderers
can take keyboard focus. | List | ||
| hasLayoutMatrix3D : Boolean [sola lettura]
Contains true if the element has 3D Matrix. | UIComponent | |
| height : Number [override]
Number that specifies the height of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| hitArea : Sprite
Definisce un altro sprite come area attiva di uno sprite. | Sprite | |
| horizontalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| id : String
ID of the component. | UIComponent | |
| 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 [sola lettura]
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 [sola lettura]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [sola lettura]
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 | |
| itemRenderer : IFactory
The item renderer to use for data items. | SkinnableDataContainer | |
| itemRendererFunction : Function
Function that returns an item renderer IFactory for a
specific item. | SkinnableDataContainer | |
| 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 | |
| layout : LayoutBase
The layout object for this container. | SkinnableDataContainer | |
| layoutMatrix3D : Matrix3D [sola scrittura]
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 | |
| loaderInfo : LoaderInfo [sola lettura]
Restituisce un oggetto LoaderInfo contenente informazioni sul caricamento del file al quale questo oggetto di visualizzazione appartiene. | DisplayObject | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject
L'oggetto di visualizzazione chiamante viene mascherato dall'oggetto mask specificato. | DisplayObject | |
| maxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| 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 | |
| metaData : Object
Ottiene l’oggetto di metadati dell’istanza DisplayObject se i metadati sono stati memorizzati insieme all’istanza di questo DisplayObject nel file SWF mediante un tag PlaceObject4. | 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
Determina se gli elementi secondari dell'oggetto sono abilitati o meno per il mouse o per il dispositivo di input dell'utente. | DisplayObjectContainer | |
| mouseEnabled : Boolean
Specifica se questo oggetto riceve messaggi del mouse o di altri dispositivi di input dell'utente. | InteractiveObject | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| mouseX : Number [sola lettura]
Indica la coordinata x del mouse o la posizione del dispositivo di input dell'utente, espressa in pixel. | DisplayObject | |
| mouseY : Number [sola lettura]
Indica la coordinata y del mouse o la posizione del dispositivo di input dell'utente, espressa in pixel. | DisplayObject | |
| name : String
Indica il nome dell'istanza dell'oggetto DisplayObject. | DisplayObject | |
| needsSoftKeyboard : Boolean
Specifica se deve essere visualizzata una tastiera virtuale (una tastiera software a video) quando questa istanza InteractiveObject riceve lo stato di attivazione. | 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 | |
| numAutomationChildren : int [sola lettura]
The number of automation children this container has. | UIComponent | |
| opaqueBackground : Object
Specifica se l'oggetto di visualizzazione è opaco con un determinato colore di sfondo. | DisplayObject | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| pageScrollingEnabled : Boolean
Whether page scrolling is currently enabled for this Scroller
| List | ||
| parent : DisplayObjectContainer [override] [sola lettura]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [sola lettura]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [sola lettura]
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 | |
| repeater : IRepeater [sola lettura]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [sola lettura]
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 | |
| requireSelection : Boolean
If true, a data item must always be selected in the control. | ListBase | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| root : DisplayObject [sola lettura]
Nel caso di un oggetto di visualizzazione all'interno di un file SWF caricato, la proprietà principale è l'oggetto di visualizzazione più in alto nella porzione della struttura dell'elenco di visualizzazione rappresentata da quel file SWF. | DisplayObject | |
| rotation : Number [override]
Indica la rotazione dell'istanza DisplayObject, espressa in gradi, rispetto alla posizione originale. | UIComponent | |
| rotationX : Number [override]
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationY : Number [override]
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationZ : Number [override]
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | UIComponent | |
| scale9Grid : Rectangle
La griglia di modifica in scala attualmente attiva. | DisplayObject | |
| scaleX : Number [override]
Number that specifies the horizontal scaling factor. | UIComponent | |
| scaleY : Number [override]
Number that specifies the vertical scaling factor. | UIComponent | |
| scaleZ : Number [override]
Number that specifies the scaling factor along the z axis. | UIComponent | |
| screen : Rectangle [sola lettura]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
I limiti del rettangolo di scorrimento dell'oggetto di visualizzazione. | DisplayObject | |
| scrollSnappingMode : String
The scroll snapping mode currently in effect for this Scroller
Changing this property to anything other than "none" may
result in an immediate change in scroll position to ensure
an element is correctly "snapped" into position. | List | ||
| selectedIndex : int
The 0-based index of the selected item, or -1 if no item is selected. | ListBase | |
| selectedIndices : Vector.<int>
A Vector of ints representing the indices of the currently selected
item or items. | List | ||
| selectedItem : *
The item that is currently selected. | ListBase | |
| selectedItems : Vector.<Object>
A Vector of Objects representing the currently selected data items. | List | ||
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| skin : UIComponent [sola lettura]
The instance of the skin class for this component instance. | SkinnableComponent | |
| softKeyboard : String
Controlla l'aspetto della tastiera software. | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
Definisce l’area che deve rimanere visibile sullo schermo quando è visualizzata una tastiera virtuale (non disponibile in iOS). | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
Controlla il suono nello sprite. | Sprite | |
| stage : Stage [sola lettura]
Lo stage dell'oggetto di visualizzazione. | 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 [sola lettura]
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 | |
| suggestedFocusSkinExclusions : Array [sola lettura]
Lists the skin parts that are
excluded from bitmaps captured and used to
show focus. | SkinnableComponent | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| tabChildren : Boolean
Determina se gli elementi secondari dell'oggetto sono abilitati per la tabulazione. | DisplayObjectContainer | |
| tabEnabled : Boolean
Specifica se questo oggetto è incluso nell'ordine di tabulazione. | 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
Specifica l'ordine di tabulazione degli oggetti in un file SWF. | InteractiveObject | |
| textSnapshot : flash.text:TextSnapshot [sola lettura]
Restituisce un oggetto TextSnapshot per questa istanza DisplayObjectContainer. | 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 [override]
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 | |
| typicalItem : Object
Layouts use the preferred size of the typicalItem
when fixed row or column sizes are required, but a specific
rowHeight or columnWidth value is not set. | SkinnableDataContainer | |
| 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
Un valore booleano che indica se viene visualizzato un cursore a forma di mano quando il puntatore passa sopra uno sprite in cui la proprietà buttonMode è impostata su true. | Sprite | |
| useVirtualLayout : Boolean [override]
Sets the value of the useVirtualLayout property
of the layout associated with this control. | List | ||
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| verticalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| visible : Boolean [override]
Whether or not the display object is visible. | UIComponent | |
| width : Number [override]
Number that specifies the width of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| x : Number [override]
Number that specifies the component's horizontal position,
in pixels, within its parent container. | UIComponent | |
| y : Number [override]
Number that specifies the component's vertical position,
in pixels, within its parent container. | UIComponent | |
| z : Number [override]
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | UIComponent | |
Proprietà protette
Metodi pubblici
| Metodo | Definito da | ||
|---|---|---|---|
List()
Constructor. | List | ||
Adds the selected items to the DragSource object as part of
a drag-and-drop operation. | List | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra un oggetto listener di eventi con un oggetto EventDispatcher, in modo che il listener riceva la notifica di un evento. | EventDispatcher | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
Indica se le restrizioni di sicurezza possono determinare l'omissione di eventuali oggetti di visualizzazione dall'elenco restituito dalla chiamata al metodo DisplayObjectContainer.getObjectsUnderPoint() con il punto specificato. | DisplayObjectContainer | |
|
Queues a function to be called later. | UIComponent | |
|
Deletes a style property from this component instance. | UIComponent | |
|
Determina se l'oggetto di visualizzazione specificato è un elemento secondario dell'istanza DisplayObjectContainer oppure è l'istanza stessa. | 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 an instance of a class that is used to display the visuals
of the dragged items during a drag and drop operation. | List | ||
Creates and instance of the dropIndicator class that is used to
display the visuals of the drop location during a drag and drop
operation. | 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 | |
Releases the dropIndicator instance that is currently set in the layout. | List | ||
|
Returns a UITextFormat object corresponding to the text styles
for this UIComponent. | UIComponent | |
| [override]
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 | |
A convenience method that handles scrolling a data item
into view. | List | ||
|
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
|
Called after printing is complete. | UIComponent | |
|
Provides the automation object at the specified index. | UIComponent | |
|
Provides the automation object list . | UIComponent | |
|
Restituisce un rettangolo che definisce l'area dell'oggetto di visualizzazione relativa al sistema di coordinate dell'oggetto targetCoordinateSpace. | 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 | |
|
Restituisce l'oggetto di visualizzazione secondario al quale corrisponde il nome specificato. | 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 | |
|
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 | |
|
Restituisce un array di oggetti che si trovano sotto il punto specificato e sono elementi secondari (di uno o più livelli inferiori) di questa istanza DisplayObjectContainer. | DisplayObjectContainer | |
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
Restituisce un rettangolo che definisce i bordi dell'oggetto di visualizzazione in base al sistema di coordinate definito dal parametro targetCoordinateSpace, esclusi gli eventuali tratti presenti sulle forme. | DisplayObject | |
|
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 | |
|
Converte le coordinate dello stage (globali) in quelle (locali) dell'oggetto di visualizzazione per l'oggetto Point. | DisplayObject | |
|
Converte un punto bidimensionale dalle coordinate dello stage (globali) in quelle (locali) di un oggetto di visualizzazione tridimensionale. | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento. | EventDispatcher | |
|
Indica se per un oggetto è definita una proprietà specifica. | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
Valuta il riquadro di delimitazione dell'oggetto di visualizzazione per verificare se si sovrappone o si interseca con il riquadro di delimitazione dell'oggetto di visualizzazione obj. | DisplayObject | |
|
Valuta l'oggetto di visualizzazione per stabilire se si sovrappone o si interseca con il punto specificato dai parametri x e y. | DisplayObject | |
|
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
|
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 | |
|
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 | |
|
Marks the component so that the new state of the skin is set
during a later screen update. | SkinnableComponent | |
|
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | |
| [override]
Given a data item, return the correct text a renderer
should display while taking the labelField
and labelFunction properties into account. | ListBase | |
|
Converte un punto tridimensionale delle coordinate (locali) dell'oggetto di visualizzazione tridimensionale in un punto bidimensionale nelle coordinate dello stage (globali). | DisplayObject | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
Converte le coordinate dell'oggetto di visualizzazione (locali) in quelle dello stage (globali) per l'oggetto Point. | 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 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 | |
|
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 | |
|
Indica se la proprietà specificata esiste ed è enumerabile. | 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 | |
|
Rimuove tutte le istanze DisplayObject secondarie dall'elenco degli elementi secondari dell'istanza DisplayObjectContainer. | DisplayObjectContainer | |
|
Rimuove un listener dall'oggetto EventDispatcher. | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
Alza una tastiera virtuale. | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [statico]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
|
Sizes the object. | UIComponent | |
|
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 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 | |
|
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Consente all'utente di trascinare lo sprite specificato. | Sprite | |
|
Consente all'utente di trascinare lo sprite specificato su un dispositivo abilitato per il tocco. | Sprite | |
|
Interrompe in modo ricorsivo l’esecuzione della linea temporale di qualsiasi MovieClips che ha origine in questo oggetto. | DisplayObjectContainer | |
|
Termina il metodo startDrag(). | Sprite | |
|
Termina il metodo startTouchDrag(), utilizzato con i dispositivi abilitati per il tocco. | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [statico]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | |
| [override]
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 | |
|
Updates an item renderer for use or reuse. | SkinnableDataContainer | |
|
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 | |
|
Restituisce il valore di base dell'oggetto specificato. | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
Verifica se un listener di eventi è registrato con questo oggetto EventDispatcher o qualsiasi suo antenato per il tipo di evento specificato. | EventDispatcher | |
Metodi protetti
| Metodo | Definito da | ||
|---|---|---|---|
|
Adjust the focus rectangle. | UIComponent | |
[override]
Adjusts the selected indices to account for items being added to or
removed from this component. | List | ||
Adjusts the selection based on what keystroke or
keystroke combinations were encountered. | List | ||
|
Commits the computed matrix built from the combination of the layout
matrix and the transform offsets to the flash displayObject's transform. | UIComponent | |
|
This is an internal method used by the Flex framework
to support the Dissolve effect. | UIComponent | |
|
Create the skin for the component. | SkinnableComponent | |
Helper method to calculate how the current selection changes when an item is clicked. | List | ||
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
|
Clear out references to skin parts. | SkinnableComponent | |
|
Processes the properties set on the component. | UIComponent | |
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. | List | ||
|
Create child objects of the component. | UIComponent | |
|
Create an instance of a dynamic skin part. | SkinnableComponent | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Destroys and removes the skin for this component. | SkinnableComponent | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
|
Find the skin parts in the skin class and assign them to the properties of the component. | SkinnableComponent | |
|
The event handler called when a UIComponent object gets focus. | UIComponent | |
|
The event handler called when a UIComponent object loses focus. | UIComponent | |
| [override]
Returns the name of the state to be applied to the skin. | SkinnableContainerBase | |
|
Returns a specific instance of a dynamic part. | SkinnableComponent | |
|
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 | |
|
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 | |
|
Called when an item has been added to this component. | ListBase | |
|
Called when an item has been removed from this component. | ListBase | |
|
Called when an item is selected or deselected. | ListBase | |
|
Called when an item is in its caret state or not. | ListBase | |
|
The event handler called for a keyDown event. | UIComponent | |
|
The event handler called for a keyUp event. | UIComponent | |
|
Calculates the default size, and optionally the default minimum size,
of the component. | UIComponent | |
|
Returns the number of instances of a dynamic part. | SkinnableComponent | |
|
Called when a skin part is added. | SkinnableComponent | |
|
Called when an instance of a skin part is being removed. | SkinnableComponent | |
|
Remove an instance of a dynamic part. | SkinnableComponent | |
|
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 | |
|
Specifies a transform stretch factor in the horizontal and vertical direction. | UIComponent | |
|
This method is called when a state changes to check whether
state-specific styles apply to this component. | UIComponent | |
|
Draws the object and/or sizes and positions its children. | UIComponent | |
Eventi
Stili
Gli stili sono di tipo comune oppure associati a un tema specifico. Se lo stile è comune, può essere utilizzato con qualunque tema. Se è associato a un tema specifico, può essere utilizzato solo se la vostra applicazione ne fa uso.
Stili comuni
| Stile | Descrizione | Definito da | ||
|---|---|---|---|---|
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Specifies the baseline to which the dominant baseline aligns. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: Flash9, AIR 1.1 The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
| Tipo: Object Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Amount to shift the baseline. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The type of CFF hinting used for this text. | SkinnableDataContainer | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of the text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The type of digit case used for this text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Type of digit width used for this text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Specifies the default bidirectional embedding level of the text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Specifies which element baseline snaps to the alignmentBaseline to determine the vertical position of the element on the line. | SkinnableDataContainer | ||
dragIndicatorClass | Tipo: Class Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The class to create instance of for the drag indicator during drag and drop operations initiated by the List. Must be of type IFlexDisplayObject.
If the class implements the If the class implements the The AIR DragManager takes a snapshot of the instance, while the non-AIR DragManager uses the instance directly. Il valore predefinito è spark.components.supportClasses.ListItemDragProxy. | List | ||
dropIndicatorSkin | Tipo: Class Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 If a dropIndicator skin part is not specified in the List skin,
then an instance of this class is created and used for the default drop
indicator during drag and drop operations where the List is a potential
drop target.
Il valore predefinito è spark.skins.spark.ListDropIndicator. | List | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: Flash9, AIR 1.1 Color of the component highlight when validation fails. | UIComponent | ||
| Tipo: Class Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Name of the skin class to use for this component when a validation error occurs. | SkinnableComponent | ||
| Tipo: Class Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: Flash9, AIR 1.1 Skin used to draw the focus rectangle. | UIComponent | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The name of the font to use, or a comma-separated list of font names. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Font lookup to use. | SkinnableDataContainer | ||
| Tipo: Number Formato: Length Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Height of the text, in pixels. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Determines whether the text is italic font. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Determines whether the text is boldface. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
horizontalScrollPolicy | Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Indicates under what conditions the horizontal scroll bar is displayed.
The scroll policy affects the measured size of the scroller skin part. This style is simply a cover for the scroller skin part's horizontalScrollPolicy. It is not an inheriting style so, for example, it will not affect item renderers. When using a horizontal List control in a mobile application,
set ScrollPolicy.AUTO.Elementi API correlati | List | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10, AIR 2.5 The primary interaction mode for this component. | UIComponent | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Rule used to justify text in a paragraph. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The style used for justification of the paragraph. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The style used for justification of the paragraph. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.1 Versioni runtime: Flash10, AIR 1.5 Specifies the desired layout direction of a component. | UIComponent | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Controls which of the ligatures that are defined in the font may be used in the text. | SkinnableDataContainer | ||
| Tipo: Object Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Leading controls for the text. | SkinnableDataContainer | ||
| Tipo: Boolean Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 If true, applies strikethrough, a line drawn through the middle of the text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The locale of the text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The rendering mode used for this text which applies only to embedded fonts. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
| Tipo: Boolean Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10, AIR 1.5 Show the error border or skin when this component is invalid | UIComponent | ||
| Tipo: Boolean Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10, AIR 1.5 Show the error tip when this component is invalid and the user rolls over it | UIComponent | ||
| Tipo: Class Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Name of the skin class to use for this component. | SkinnableComponent | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Alignment of text within a container. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Alignment of the last line in the paragraph relative to the container in justified text. | SkinnableDataContainer | ||
| Tipo: Number Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Alpha (transparency) value for the text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Determines whether the text is underlined. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Specifies options for justifying text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
touchDelay | Tipo: Number Formato: Time Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10.1, AIR 2.5 When in touch interaction mode, the number of milliseconds to wait after the user interaction has occured before showing the component in a visually down state. The reason for this delay is because when a user initiates a scroll gesture, we don't want components to flicker as they touch the screen. By having a reasonable delay, we make sure that the user still gets feedback when they press down on a component, but that the feedback doesn't come too quickly that it gets displayed during a scroll gesture operation. If the mobile theme is applied, the default value for this style is 100 ms for components inside of a Scroller and 0 ms for components outside of a Scroller. | List | ||
| Tipo: Object Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The amount of tracking (manual kerning) to be applied to the left of each character. | SkinnableDataContainer | ||
| Tipo: Object Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The amount of tracking (manual kerning) to be applied to the right of each character. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: Sì Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The type of typographic case used for this text. | SkinnableDataContainer | ||
| Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 3 Versioni runtime: 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 | ||
verticalScrollPolicy | Tipo: String Ereditarietà CSS: No Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Indicates under what conditions the vertical scroll bar is displayed.
The scroll policy affects the measured size of the scroller skin part. This style is simply a cover for the scroller skin part's verticalScrollPolicy. It is not an inheriting style so, for example, it will not affect item renderers. When using a horizontal List control in a mobile application,
set ScrollPolicy.AUTO.Elementi API correlati | List | ||
Stili tema Spark
| Stile | Descrizione | Definito da | ||
|---|---|---|---|---|
alternatingItemColors | Tipo: Array Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The colors to use for the backgrounds of the items in the list. The value is an array of one or more colors. The backgrounds of the list items alternate among the colors in the array. The default value for the Spark theme is | List | ||
borderAlpha | Tipo: Number Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the border for this component. Il valore predefinito è 1.0. | List | ||
borderColor | Tipo: uint Formato: Color Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the border for this component. Il valore predefinito è #696969. | List | ||
borderVisible | Tipo: Boolean Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Controls the visibility of the border for this component. Il valore predefinito è true. | List | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The main color for a component. | SkinnableComponent | ||
contentBackgroundAlpha | Tipo: Number Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the content background for this component. | List | ||
contentBackgroundColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the content background for this component. For a List, changing The default value for the Spark theme is | List | ||
| Tipo: Number Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the focus ring for this component. | SkinnableDataContainer | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of focus ring when the component is in focus. | SkinnableDataContainer | ||
rollOverColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of the highlights when the mouse is over the component. This style is only applicable in mouse 0xCEDBEF. | List | ||
selectionColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the background of a renderer when the user selects it. The default value for the Halo theme is | List | ||
symbolColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of any symbol of a component. Examples include the check mark of a CheckBox or the arrow of a scroll button. Il valore predefinito è 0x000000. | List | ||
Stili tema Mobile
| Stile | Descrizione | Definito da | ||
|---|---|---|---|---|
alternatingItemColors | Tipo: Array Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The colors to use for the backgrounds of the items in the list. The value is an array of one or more colors. The backgrounds of the list items alternate among the colors in the array. The default value for the Spark theme is | List | ||
borderAlpha | Tipo: Number Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the border for this component. Il valore predefinito è 1.0. | List | ||
borderColor | Tipo: uint Formato: Color Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the border for this component. Il valore predefinito è #696969. | List | ||
borderVisible | Tipo: Boolean Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Controls the visibility of the border for this component. Il valore predefinito è true. | List | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The main color for a component. | SkinnableComponent | ||
contentBackgroundAlpha | Tipo: Number Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the content background for this component. | List | ||
contentBackgroundColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the content background for this component. For a List, changing The default value for the Spark theme is | List | ||
downColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10.1, AIR 2.5 Color of the background of an item renderer when it is being pressed down If The default value for the Spark theme is | List | ||
| Tipo: Number Ereditarietà CSS: No Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The alpha of the focus ring for this component. | SkinnableDataContainer | ||
| Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of focus ring when the component is in focus. | SkinnableDataContainer | ||
| Tipo: Number Formato: Length Ereditarietà CSS: Sì Tema: mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10.1, AIR 2.0 Additional vertical space between lines of text. | SkinnableDataContainer | ||
| Tipo: Number Ereditarietà CSS: Sì Tema: mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4.5 Versioni runtime: Flash10.1, AIR 2.0 The number of additional pixels to appear between each character. | SkinnableDataContainer | ||
selectionColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The color of the background of a renderer when the user selects it. The default value for the Halo theme is | List | ||
symbolColor | Tipo: uint Formato: Color Ereditarietà CSS: Sì Tema: spark, mobile Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 Color of any symbol of a component. Examples include the check mark of a CheckBox or the arrow of a scroll button. Il valore predefinito è 0x000000. | List | ||
Parti skin
Questo componente utilizza skin costituiti da più parti. Non impostate le parti degli skin direttamente. Vengono impostate dallo skin del componente.
| Parte skin | Descrizione | Definito da | ||
|---|---|---|---|---|
| Obbligatorio: false Tipo parte: Statico Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 An optional skin part that defines the DataGroup in the skin class where data items get pushed into, rendered, and laid out. | SkinnableDataContainer | ||
dropIndicator:IFactory | Obbligatorio: false Tipo parte: Dinamico Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 A skin part that defines the appearance of the drop indicator. The drop indicator is resized and positioned by the layout to outline the insert location when dragging over the List. By default, the drop indicator for a Spark control is a solid line that spans the width of the control. Create a custom drop indicator by creating a custom skin class for the drop target. In your skin class, create a skin part named dropIndicator, in the IFactory deve restituire un oggetto del tipo DisplayObject. | List | ||
scroller:Scroller | Obbligatorio: false Tipo parte: Statico Versione linguaggio: ActionScript 3.0 Versione prodotto: Flex 4 Versioni runtime: Flash10, AIR 1.5 The optional Scroller used to scroll the List. | List | ||
Stati skin
Per applicare uno skin al componente, implementate uno skin che definisce gli stati seguenti. Benché sia necessario implementare tutti gli stati dello skin, potete lasciare vuoto uno stato di skin. Uno stato di skin vuoto non applica alcuna modifica allo stato predefinito dello skin.
Effetti
Costanti pubbliche
Descrizione delle proprietà
allowMultipleSelection | proprietà |
allowMultipleSelection:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
If true multiple selection is enabled.
When switched at run time, the current selection
is cleared.
This should not be turned on when interactionMode
is touch.
Il valore predefinito è false.
Implementazione
public function get allowMultipleSelection():Boolean public function set allowMultipleSelection(value:Boolean):voiddragEnabled | proprietà |
dragEnabled:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A flag that indicates whether you can drag items out of
this control and drop them on other controls.
If true, dragging is enabled for the control.
If the dropEnabled property is also true,
you can drag items and drop them within this control
to reorder the items.
Drag and drop is not supported on mobile devices where
interactionMode is set to touch.
Il valore predefinito è false.
Implementazione
public function get dragEnabled():Boolean public function set dragEnabled(value:Boolean):voiddragMoveEnabled | proprietà |
dragMoveEnabled:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A flag that indicates whether items can be moved instead
of just copied from the control as part of a drag-and-drop
operation.
If true, and the dragEnabled property
is true, items can be moved.
Often the data provider cannot or should not have items removed
from it, so a MOVE operation should not be allowed during
drag-and-drop.
Drag and drop is not supported on mobile devices where
interactionMode is set to touch.
Il valore predefinito è false.
Implementazione
public function get dragMoveEnabled():Boolean public function set dragMoveEnabled(value:Boolean):voiddropEnabled | proprietà |
dropEnabled:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A flag that indicates whether dragged items can be dropped onto the control.
If you set this property to true,
the control accepts all data formats, and assumes that
the dragged data matches the format of the data in the data provider.
If you want to explicitly check the data format of the data
being dragged, you must handle one or more of the drag events,
such as dragEnter and dragOver,
and call the DragEvent's preventDefault() method
to customize the way the list class accepts dropped data.
Drag and drop is not supported on mobile devices where
interactionMode is set to touch.
Il valore predefinito è false.
Implementazione
public function get dropEnabled():Boolean public function set dropEnabled(value:Boolean):voidhasFocusableChildren | proprietà |
hasFocusableChildren:Boolean[override] | Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A flag that indicates whether this List's focusable item renderers can take keyboard focus.
Note: This property is similar to the tabChildren property
used by Flash Player.
Use the hasFocusableChildren property with Flex applications.
Do not use the tabChildren property.
This property is usually false because most components
either receive focus themselves or delegate focus to a single
internal sub-component and appear as if the component has
received focus. You may choose to set this to true on a List
such that the contents within your List become focusable.
If set, and the List skin contains a Scroller skin part, the value is proxied down onto the Scroller.
If the value is true, this proxying means that
the contents of the Scroller, like item renderers, are now
focusable. For example, this means the first tab keystroke will
put focus on the List control, and the second tab keystroke will
put focus on the first focusable child of the Scroller.
If false, the first tab keystroke will put focus
on the List control and the second tab keystroke will move focus
to the next focusable control after the List.
Il valore predefinito è false.
Implementazione
override public function get hasFocusableChildren():Boolean override public function set hasFocusableChildren(value:Boolean):void pageScrollingEnabled | proprietà |
pageScrollingEnabled:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4.6 |
| Versioni runtime: | AIR 3 |
Whether page scrolling is currently enabled for this Scroller
Il valore predefinito è false.
Implementazione
public function get pageScrollingEnabled():Boolean public function set pageScrollingEnabled(value:Boolean):void scrollSnappingMode | proprietà |
scrollSnappingMode:String| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4.6 |
| Versioni runtime: | AIR 3 |
The scroll snapping mode currently in effect for this Scroller
Changing this property to anything other than "none" may result in an immediate change in scroll position to ensure an element is correctly "snapped" into position. This change in scroll position is not animated
Il valore predefinito è "none".
Implementazione
public function get scrollSnappingMode():String public function set scrollSnappingMode(value:String):voidElementi API correlati
selectedIndices | proprietà |
selectedIndices:Vector.<int>| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A Vector of ints representing the indices of the currently selected
item or items.
If multiple selection is disabled by setting
allowMultipleSelection to false, and this property
is set, the data item corresponding to the first index in the Vector is selected.
If multiple selection is enabled by setting
allowMultipleSelection to true, this property
contains a list of the selected indices in the reverse order in which they were selected.
That means the first element in the Vector corresponds to the last item selected.
Il valore predefinito è [].
Questa proprietà può essere utilizzata come origine per l’associazione di dati. Quando questa proprietà viene modificata, invia l’evento valueCommit .
Implementazione
public function get selectedIndices():Vector.<int> public function set selectedIndices(value:Vector.<int>):voidselectedItems | proprietà |
selectedItems:Vector.<Object>| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A Vector of Objects representing the currently selected data items.
If multiple selection is disabled by setting allowMultipleSelection
to false, and this property is set, the data item
corresponding to the first item in the Vector is selected.
If multiple selection is enabled by setting
allowMultipleSelection to true, this property
contains a list of the selected items in the reverse order in which they were selected.
That means the first element in the Vector corresponds to the last item selected.
Il valore predefinito è [].
Questa proprietà può essere utilizzata come origine per l’associazione di dati. Quando questa proprietà viene modificata, invia l’evento valueCommit .
Implementazione
public function get selectedItems():Vector.<Object> public function set selectedItems(value:Vector.<Object>):voiduseVirtualLayout | proprietà |
useVirtualLayout:Boolean[override] | Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Sets the value of the useVirtualLayout property
of the layout associated with this control.
If the layout is subsequently replaced and the value of this
property is true, then the new layout's
useVirtualLayout property is set to true.
Il valore predefinito è true.
Implementazione
override public function get useVirtualLayout():Boolean override public function set useVirtualLayout(value:Boolean):voidDescrizione della funzione di costruzione
List | () | Funzione di costruzione |
public function List()| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Constructor.
Descrizione dei metodi
addDragData | () | metodo |
public function addDragData(dragSource:DragSource):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Adds the selected items to the DragSource object as part of a drag-and-drop operation. Override this method to add other data to the drag source.
Parametri
dragSource:DragSource — The DragSource object to which to add the data.
|
adjustSelection | () | metodo |
override protected function adjustSelection(index:int, add:Boolean = false):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Adjusts the selected indices to account for items being added to or removed from this component.
Parametri
index:int — The new index.
| |
add:Boolean (default = false)true if an item was added to the component,
and false if an item was removed.
|
adjustSelectionAndCaretUponNavigation | () | metodo |
protected function adjustSelectionAndCaretUponNavigation(event:KeyboardEvent):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Adjusts the selection based on what keystroke or keystroke combinations were encountered. The keystroke is sent down to the layout and it is up to the layout's getNavigationDestinationIndex() method to determine what the index to navigate to based on the item that is currently in focus. Once the index is determined, single selection, caret item and if necessary, multiple selections are updated to reflect the newly selected item.
Parametri
event:KeyboardEvent — The Keyboard Event encountered
|
calculateSelectedIndices | () | metodo |
protected function calculateSelectedIndices(index:int, shiftKey:Boolean, ctrlKey:Boolean):Vector.<int>| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Helper method to calculate how the current selection changes when an item is clicked.
Parametri
index:int — The index of the item that has been clicked.
| |
shiftKey:Boolean — True when the shift key is pressed.
| |
ctrlKey:Boolean — True when the control key is pressed.
|
Vector.<int> — The updated item indices that the new selection will be committed to.
|
Elementi API correlati
copyItemWithUID | () | metodo |
protected function copyItemWithUID(item:Object):Object| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
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.
This method is used for a drag and drop copy.
Parametri
item:Object — The item to copy.
|
Object — The copy of the object.
|
Elementi API correlati
createDragIndicator | () | metodo |
public function createDragIndicator():IFlexDisplayObject| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Creates an instance of a class that is used to display the visuals
of the dragged items during a drag and drop operation.
The default DragEvent.DRAG_START handler passes the
instance to the DragManager.doDrag() method.
IFlexDisplayObject — The IFlexDisplayObject representing the drag indicator.
|
createDropIndicator | () | metodo |
public function createDropIndicator():DisplayObject| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Creates and instance of the dropIndicator class that is used to
display the visuals of the drop location during a drag and drop
operation. The instance is set in the layout's
dropIndicator property.
If you override the dragEnter event handler,
and call preventDefault() so that the default handler does not execute,
call createDropIndicator() to create the drop indicator.
DisplayObject — Returns the dropIndicator that was set in the layout.
|
Elementi API correlati
destroyDropIndicator | () | metodo |
public function destroyDropIndicator():DisplayObject| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Releases the dropIndicator instance that is currently set in the layout.
If you override the dragExit event handler,
and call preventDefault() so that the default handler does not execute,
call destroyDropIndicator() to delete the drop indicator.
DisplayObject — Returns the dropIndicator that was removed.
|
Elementi API correlati
ensureIndexIsVisible | () | metodo |
public function ensureIndexIsVisible(index:int):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 4 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
A convenience method that handles scrolling a data item into view. If the data item at the specified index is not completely visible, the List scrolls until it is brought into view. If the data item is already in view, no additional scrolling occurs.
Parametri
index:int — The index of the data item.
|
ListExample.mxml
<?xml version="1.0"?>
<!-- Simple example to demonstrate the Spark List component -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Script>
<![CDATA[
import spark.events.IndexChangeEvent;
//this function is called when the selection is going to change
private function selectionChangingHandler(evt:IndexChangeEvent):void {
var item:* = list.dataProvider.getItemAt(evt.newIndex);
if (item.type != "employee") {
evt.preventDefault();
}
}
]]>
</fx:Script>
<s:Panel title="Spark List Component Example"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:VGroup left="20" right="20" top="20" bottom="20">
<s:Label width="330"
text="Select a name to see employee's phone number. You should not be able to select the first name."/>
<s:List id="list" changing="selectionChangingHandler(event);">
<!-- itemRenderer is inline in this sample -->
<s:itemRenderer>
<fx:Component>
<s:ItemRenderer>
<s:states>
<s:State name="normal" />
<s:State name="hovered" />
<s:State name="selected" />
</s:states>
<s:Rect left="0" right="0" top="0" bottom="0">
<s:fill>
<s:SolidColor color="0x999999" alpha="0" alpha.hovered="0.2"
alpha.selected="0.6" />
</s:fill>
</s:Rect>
<s:Label id="nameLabel" text="{data.lastName}, {data.firstName}" top="5" left="5" right="5" />
<s:Label y="20" id="phoneLabel" text="{data.phone}" includeIn="selected" top="25" bottom="5" left="5" right="5" />
</s:ItemRenderer>
</fx:Component>
</s:itemRenderer>
<s:dataProvider>
<s:ArrayList>
<fx:Object type="hr" firstName="Ann" lastName="Green" />
<fx:Object type="employee" firstName="Tom" lastName="Smith" phone="415-155-1212" />
<fx:Object type="employee" firstName="John" lastName="Black" phone="408-344-1234" />
<fx:Object type="employee" firstName="Jane" lastName="White" phone="415-235-7878" />
<fx:Object type="employee" firstName="Bill" lastName="Jones" phone="415-875-7800" />
</s:ArrayList>
</s:dataProvider>
</s:List>
</s:VGroup>
</s:Panel>
</s:Application>
Tue Jun 12 2018, 02:44 PM Z