| Package | mx.controls |
| Class | public class ComboBase |
| Inheritance | ComboBase  UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Implements | IIMESupport, IFocusManagerComponent |
| Subclasses | ColorPicker, ComboBox, DateField |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Show MXML Syntax
Hide MXML SyntaxThe <mx:ComboBase> tag inherits all the tag attributes
of its superclass, and adds the following tag attributes:
<mx:tagname
Properties
dataProvider="null"
editable="false|true"
imeMode="null"
restrict="null"
selectedIndex="-1"
selectedItem="null"
text=""
Styles
disabledSkin="Depends on class"
downSkin="Depends on class"
editableDisabledSkin="Depends on class"
editableDownSkin="Depends on class"
editableOverSkin="Depends on class"
editableUpSkin="Depends on class"
overSkin="Depends on class"
textInputStyleName=""
upSkin="Depends on class"
/>
Related API Elements
Public Properties
| Property | Defined By | ||
|---|---|---|---|
 | 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
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [read-only]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [read-only]
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 [read-only]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [read-only]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [read-only]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [read-only]
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 [read-only]
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 [read-only]
The y-coordinate of the baseline
of the first line of text of the component. | UIComponent | |
| blendMode : String
A value from the BlendMode class that specifies which blend mode to use. | DisplayObject | |
| blendShader : Shader [write-only]
Sets a shader that is used for blending the foreground and background. | DisplayObject | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
Specifies the button mode of this sprite. | Sprite | |
| cacheAsBitmap : Boolean
If set to true, Flash runtimes cache an internal bitmap representation of the
display object. | DisplayObject | |
| cacheAsBitmapMatrix : Matrix
If non-null, this Matrix object defines how a display object is rendered when
cacheAsBitmap is set to true. | DisplayObject | |
| cacheHeuristic : Boolean [write-only]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| className : String [read-only]
The name of this instance's class, such as "Button". | UIComponent | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| contentMouseX : Number [read-only]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [read-only]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contextMenu : NativeMenu
Specifies the context menu associated with this object. | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [read-only]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| dataProvider : Object
The set of items this component displays. | ComboBase | ||
| 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 | |
| dropTarget : DisplayObject [read-only]
Specifies the display object over which the sprite is being dragged, or on
which the sprite was dropped. | Sprite | |
| editable : Boolean
A flag that indicates whether the control is editable,
which lets the user directly type entries that are not specified
in the dataProvider, or not editable, which requires the user select
from the items in the dataProvider. | ComboBase | ||
| enabled : Boolean
Whether the component can accept user interaction. | UIComponent | |
| enableIME : Boolean [read-only]
A flag that indicates whether the IME should
be enabled when the component receives focus. | ComboBase | ||
| 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
An indexed array that contains each filter object currently associated with the display object. | 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
Specifies whether this object displays a focus rectangle. | InteractiveObject | |
| graphics : Graphics [read-only]
Specifies the Graphics object that belongs to this sprite where vector
drawing commands can occur. | Sprite | |
| hasFocusableChildren : Boolean
A flag that indicates whether child objects can receive focus. | UIComponent | |
| hasLayoutMatrix3D : Boolean [read-only]
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
Designates another sprite to serve as the hit area for a 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 | |
| imeMode : String
Specifies the IME (input method editor) mode. | ComboBase | ||
| 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 [read-only]
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 [read-only]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [read-only]
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 | |
| layoutMatrix3D : Matrix3D [write-only]
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 [read-only]
Returns a LoaderInfo object containing information about loading the file
to which this display object belongs. | DisplayObject | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject
The calling display object is masked by the specified mask object. | 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
Obtains the meta data object of the DisplayObject instance if meta data was stored alongside the
the instance of this DisplayObject in the SWF file through a PlaceObject4 tag. | 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
Determines whether or not the children of the object are mouse, or user input device, enabled. | DisplayObjectContainer | |
| mouseEnabled : Boolean
Specifies whether this object receives mouse, or other user input, messages. | InteractiveObject | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| mouseX : Number [read-only]
Indicates the x coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
| mouseY : Number [read-only]
Indicates the y coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
| name : String
Indicates the instance name of the DisplayObject. | DisplayObject | |
| needsSoftKeyboard : Boolean
Specifies whether a virtual keyboard (an on-screen, software keyboard) should display
when this InteractiveObject instance receives focus. | 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 [read-only]
The number of automation children this container has. | UIComponent | |
| numChildren : int [read-only]
Returns the number of children of this object. | DisplayObjectContainer | |
| opaqueBackground : Object
Specifies whether the display object is opaque with a certain background color. | DisplayObject | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| parent : DisplayObjectContainer [override] [read-only]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [read-only]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [read-only]
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 [read-only]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [read-only]
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 | |
| restrict : String
Set of characters that a user can or cannot enter into the text field. | ComboBase | ||
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| root : DisplayObject [read-only]
For a display object in a loaded SWF file, the root property is the
top-most display object in the portion of the display list's tree structure represented by that SWF file. | DisplayObject | |
| rotation : Number [override]
Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation. | 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
The current scaling grid that is in effect. | 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 [read-only]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
| selectedIndex : int
The index in the data provider of the selected item. | ComboBase | ||
| selectedItem : Object
The item in the data provider at the selectedIndex. | ComboBase | ||
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| softKeyboard : String
Controls the appearance of the soft keyboard. | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
Defines the area that should remain on-screen when a soft keyboard is displayed (not available on iOS). | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
Controls sound within this sprite. | Sprite | |
| stage : Stage [read-only]
The Stage of the display object. | 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 [read-only]
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
Determines whether the children of the object are tab enabled. | DisplayObjectContainer | |
| tabEnabled : Boolean
Specifies whether this object is in the tab order. | 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
Specifies the tab ordering of objects in a SWF file. | InteractiveObject | |
| text : String
Contents of the text field. | ComboBase | ||
| textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | 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 | |
| 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
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the pointer rolls
over a sprite in which the buttonMode property is set to true. | Sprite | |
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| value : Object [read-only]
The value of the selected item. | ComboBase | ||
| 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 | |
Protected Properties
| Property | Defined By | ||
|---|---|---|---|
| arrowButtonStyleFilters : Object [read-only]
Set of styles to pass from the ComboBase to the down arrow button
| ComboBase | ||
| borderMetrics : EdgeMetrics [read-only]
Returns an EdgeMetrics object that has four properties:
left, top, right,
and bottom. | ComboBase | ||
| collection : ICollectionView
The ICollectionView of items this component displays. | ComboBase | ||
| currentCSSState : String [read-only]
The state to be used when matching CSS pseudo-selectors. | UIComponent | |
| hasComplexLayoutMatrix : Boolean [read-only]
Returns true if the UIComponent has any non-translation (x,y) transform properties. | UIComponent | |
| iterator : IViewCursor
The main IViewCursor used to fetch items from the
dataProvider and pass the items to the renderers. | ComboBase | ||
| resourceManager : IResourceManager [read-only]
A reference to the object which manages
all of the application's localized resources. | UIComponent | |
| textInput : mx.core:ITextInput
The internal TextInput subcomponent that displays
the current selection. | ComboBase | ||
| textInputStyleFilters : Object [read-only]
The set of styles to pass from the ComboBase to the text input. | ComboBase | ||
| unscaledHeight : Number [read-only]
A convenience method for determining the unscaled height
of the component. | UIComponent | |
| unscaledWidth : Number [read-only]
A convenience method for determining the unscaled width
of the component
All of a component's drawing and child layout should be done
within a bounding rectangle of this width, which is also passed
as an argument to updateDisplayList(). | UIComponent | |
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Constructor. | ComboBase | ||
|
Adds a child DisplayObject instance to this DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Adds a child DisplayObject instance to this DisplayObjectContainer
instance. | DisplayObjectContainer | |
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
Indicates whether the security restrictions
would cause any display objects to be omitted from the list returned by calling
the DisplayObjectContainer.getObjectsUnderPoint() method
with the specified point point. | DisplayObjectContainer | |
|
Queues a function to be called later. | UIComponent | |
|
Deletes a style property from this component instance. | UIComponent | |
|
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | 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 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 | |
|
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 | |
|
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 | |
|
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | 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 | |
|
Returns the child display object instance that exists at the specified index. | DisplayObjectContainer | |
|
Returns the child display object that exists with the specified name. | DisplayObjectContainer | |
|
Returns the index position of a child DisplayObject instance. | 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 | |
|
Returns an array of objects that lie under the specified point and are children
(or grandchildren, and so on) of this DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
Returns a rectangle that defines the boundary of the display object,
based on the coordinate system defined by the targetCoordinateSpace
parameter, excluding any strokes on shapes. | 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 | |
|
Converts the point object from the Stage (global) coordinates
to the display object's (local) coordinates. | DisplayObject | |
|
Converts a two-dimensional point from the Stage (global) coordinates to a
three-dimensional display object's (local) coordinates. | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
Evaluates the bounding box of the display object to see if it overlaps or intersects with the
bounding box of the obj display object. | DisplayObject | |
|
Evaluates the display object to see if it overlaps or intersects with the
point specified by the x and y parameters. | 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 | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Converts a three-dimensional point of the three-dimensional display
object's (local) coordinates to a two-dimensional point in the Stage (global) coordinates. | DisplayObject | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
Converts the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | 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 | |
|
Indicates whether the specified property exists and is enumerable. | 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 | |
|
Removes the specified child DisplayObject instance from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes a child DisplayObject from the specified index position in the child list of
the DisplayObjectContainer. | DisplayObjectContainer | |
|
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
Raises a virtual keyboard. | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [static]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
|
Sizes the object. | UIComponent | |
|
Changes the position of an existing child in the display object container. | 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 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 | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Lets the user drag the specified sprite. | Sprite | |
|
Lets the user drag the specified sprite on a touch-enabled device. | Sprite | |
|
Recursively stops the timeline execution of all MovieClips rooted at this object. | DisplayObjectContainer | |
|
Ends the startDrag() method. | Sprite | |
|
Ends the startTouchDrag() method, for use with touch-enabled devices. | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [static]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
Swaps the z-order (front-to-back order) of the two specified child objects. | DisplayObjectContainer | |
|
Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the
child list. | DisplayObjectContainer | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | 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 | |
|
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 | |
|
Returns the primitive value of the specified object. | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Protected Methods
| Method | Defined By | ||
|---|---|---|---|
|
Adjust the focus rectangle. | UIComponent | |
|
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 | |
Determines default values of the height and width to use for the
entries in the drop-down list. | ComboBase | ||
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
Responds to changes to the data provider. | ComboBase | ||
|
Processes the properties set on the component. | UIComponent | |
|
Create child objects of the component. | UIComponent | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
Performs some action when the drop-down button is pressed. | ComboBase | ||
|
The event handler called when a UIComponent object gets focus. | UIComponent | |
|
The event handler called when a UIComponent object loses focus. | UIComponent | |
|
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 | |
Determines the UID for a dataProvider item. | ComboBase | ||
|
The event handler called for a keyDown event. | UIComponent | |
|
The event handler called for a keyUp event. | UIComponent | |
[override]
Determines the measuredWidth and
measuredHeight properties of the control. | ComboBase | ||
|
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 | |
Handles changes to the TextInput that serves as the editable
text field in the component. | ComboBase | ||
[override]
Sizes and positions the internal components in the given width
and height. | ComboBase | ||
Styles
Styles are either common or associated with a specific theme. If the style is common, it can be used with any theme. If a style is associated with a specific theme, it can only be used if your application uses that theme.
Common Styles
| Style | Description | Defined By | ||
|---|---|---|---|---|
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
disabledSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the control is disabled. For the ComboBase class, there is no default value. For the ComboBox class, the default value is the ComboBoxArrowSkin class. For the ColorPicker class, the default value is the ColorPickerSkin class. For the DateField class, the default value is the ScrollArrowDownSkin class. | ComboBase | ||
downSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the user holds down the mouse button. For the ComboBase class, there is no default value. For the ComboBox class, the default value is the ComboBoxArrowSkin class. For the ColorPicker class, the default value is the ColorPickerSkin class. For the DateField class, the default value is the ScrollArrowDownSkin class. | ComboBase | ||
editableDisabledSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the control is disabled, and the editable
property is true. This skin is only used by the ComboBox class.
For the ComboBase class, there is no default value.
For the ComboBox class, the default value is the ComboBoxArrowSkin class.
| ComboBase | ||
editableDownSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the user holds down the mouse button, and the editable
property is true. This skin is only used by the ComboBox class.
For the ComboBase class, there is no default value.
For the ComboBox class, the default value is the ComboBoxArrowSkin class.
| ComboBase | ||
editableOverSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the mouse is over the control, and the editable
property is true. This skin is only used by the ComboBox class.
For the ComboBase class, there is no default value.
For the ComboBox class, the default value is the ComboBoxArrowSkin class.
| ComboBase | ||
editableSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the editable
property is true. This skin is only used by the ComboBox class.
For the ComboBase class, there is no default value.
For the ComboBox class, the default value is the ComboBoxArrowSkin class.
| ComboBase | ||
editableUpSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the mouse is not over the control, and the editable
property is true. This skin is only used by the ComboBox class.
For the ComboBase class, there is no default value.
For the ComboBox class, the default value is the ComboBoxArrowSkin class.
| ComboBase | ||
| Type: uint Format: Color CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Color of the component highlight when validation fails. | UIComponent | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Blend mode used by the focus rectangle. | UIComponent | ||
| Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Skin used to draw the focus rectangle. | UIComponent | ||
| Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Thickness, in pixels, of the focus rectangle outline. | UIComponent | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
| Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 2.5 The primary interaction mode for this component. | UIComponent | ||
| Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.1 Runtime Versions: Flash10, AIR 1.5 Specifies the desired layout direction of a component. | UIComponent | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
overSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the mouse is over the control. For the ComboBase class, there is no default value. For the ComboBox class, the default value is the ComboBoxArrowSkin class. For the ColorPicker class, the default value is the ColorPickerSkin class. For the DateField class, the default value is the ScrollArrowDownSkin class. | ComboBase | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
| Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 1.5 Show the error border or skin when this component is invalid | UIComponent | ||
| Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 1.5 Show the error tip when this component is invalid and the user rolls over it | UIComponent | ||
skin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the default skin for the background and border. For the ComboBase class, there is no default value. For the ComboBox class, the default value is the ComboBoxArrowSkin class. | ComboBase | ||
textInputClass | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The class implementing ITextInput that is used by this component to input text. It can be set to either the mx.core.TextInput class (to use the classic Halo TextInput control) or the mx.controls.MXFTETextInput class (to use the Spark TextInput component based on the Text Layout Framework to get improved text rendering, including bidirectional layout). The default value is mx.controls.TextInput. | ComboBase | ||
textInputStyleName | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The style declaration for the internal TextInput subcomponent that displays the current selection. If no value is specified, then the TextInput subcomponent uses the default text styles defined by the ComboBase class. The default value is "". | ComboBase | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
upSkin | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the class to use as the skin for the background and border when the mouse is not over the control. For the ComboBase class, there is no default value. For the ComboBox class, the default value is the ComboBoxArrowSkin class. | ComboBase | ||
| Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: 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 | ||
Spark Theme Styles
| Style | Description | Defined By | ||
|---|---|---|---|---|
| Type: uint Format: Color CSS Inheritance: Yes Theme: spark Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The main color for a component. | UIComponent | ||
contentBackgroundAlpha | Type: Number CSS Inheritance: Yes Theme: spark Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The alpha of the content background for this component. | ComboBase | ||
contentBackgroundColor | Type: uint Format: Color CSS Inheritance: Yes Theme: spark Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Color of the content area of the component. The default value is 0xFFFFFF. | ComboBase | ||
focusColor | Type: uint Format: Color CSS Inheritance: Yes Theme: spark Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Color of focus ring when the component is in focus The default value is 0x70B2EE. | ComboBase | ||
symbolColor | Type: uint Format: Color CSS Inheritance: Yes Theme: spark Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Color of any symbol of a component. Examples include the check mark of a CheckBox or the arrow of a ScrollBar button. The default value is 0x000000. | ComboBase | ||
Halo Theme Styles
Public Constants
Property Detail
arrowButtonStyleFilters | property |
borderMetrics | property |
borderMetrics:EdgeMetrics [read-only] | Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Returns an EdgeMetrics object that has four properties:
left, top, right,
and bottom.
The value of each property is equal to the thickness of the
corresponding side of the border, expressed in pixels.
Implementation
protected function get borderMetrics():EdgeMetricscollection | property |
protected var collection:ICollectionView| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The ICollectionView of items this component displays.
dataProvider | property |
dataProvider:Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The set of items this component displays. This property is of type Object because the derived classes can handle a variety of data types such as Arrays, XML, ICollectionViews, and other classes. All are converted into an ICollectionView and that ICollectionView is returned if you get the value of this property; you will not get the value you set if it was not an ICollectionView.
Setting this property will adjust the selectedIndex
property (and therefore the selectedItem property) if
the selectedIndex property has not otherwise been set.
If there is no prompt property, the selectedIndex
property will be set to 0; otherwise it will remain at -1,
the index used for the prompt string.
If the selectedIndex property has been set and
it is out of range of the new data provider, unexpected behavior is
likely to occur.
This property can be used as the source for data binding. When this property is modified, it dispatches the collectionChange event.
Implementation
public function get dataProvider():Object public function set dataProvider(value:Object):voideditable | property |
editable:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A flag that indicates whether the control is editable, which lets the user directly type entries that are not specified in the dataProvider, or not editable, which requires the user select from the items in the dataProvider.
If true keyboard input will be entered in the
editable text field; otherwise it will be used as shortcuts to
select items in the dataProvider.
The default value is false. This property is ignored by the DateField control..
This property can be used as the source for data binding. When this property is modified, it dispatches the editableChanged event.
Implementation
public function get editable():Boolean public function set editable(value:Boolean):voidenableIME | property |
imeMode | property |
imeMode:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Specifies the IME (input method editor) mode. The IME enables users to enter text in Chinese, Japanese, and Korean. Flex sets the specified IME mode when the control gets the focus, and sets it back to the previous value when the control loses the focus.
The flash.system.IMEConversionMode class defines constants for the
valid values for this property.
You can also specify null to specify no IME.
The default value is null.
Implementation
public function get imeMode():String public function set imeMode(value:String):voiditerator | property |
protected var iterator:IViewCursor| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The main IViewCursor used to fetch items from the dataProvider and pass the items to the renderers. At the end of any sequence of code, it must always be positioned at the topmost visible item on screen.
restrict | property |
restrict:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Set of characters that a user can or cannot enter into the text field.
The default value is null.
This property can be used as the source for data binding. When this property is modified, it dispatches the restrictChanged event.
Implementation
public function get restrict():String public function set restrict(value:String):voidRelated API Elements
selectedIndex | property |
selectedIndex:int| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The index in the data provider of the selected item.
If there is a prompt property, the selectedIndex
value can be set to -1 to show the prompt.
If there is no prompt, property then selectedIndex
will be set to 0 once a dataProvider is set.
If the ComboBox control is editable, the selectedIndex
property is -1 if the user types any text
into the text field.
Unlike many other Flex properties that are invalidating (setting
them does not have an immediate effect), the selectedIndex and
selectedItem properties are synchronous; setting one immediately
affects the other.
The default value is -1.
This property can be used as the source for data binding. When this property is modified, it dispatches the valueCommit event.
Implementation
public function get selectedIndex():int public function set selectedIndex(value:int):voidselectedItem | property |
selectedItem:Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The item in the data provider at the selectedIndex.
If the data is an object or class instance, modifying
properties in the object or instance modifies the
dataProvider object but may not update the views
unless the instance is Bindable or implements IPropertyChangeNotifier
or a call to dataProvider.itemUpdated() occurs.
selectedItem property causes the
ComboBox control to select that item (display it in the text field and
set the selectedIndex) if it exists in the data provider.
If the ComboBox control is editable, the selectedItem
property is null if the user types any text
into the text field.
Unlike many other Flex properties that are invalidating (setting
them does not have an immediate effect), selectedIndex and
selectedItem are synchronous; setting one immediately
affects the other.
The default value is null;.
This property can be used as the source for data binding. When this property is modified, it dispatches the valueCommit event.
Implementation
public function get selectedItem():Object public function set selectedItem(value:Object):voidtext | property |
text:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Contents of the text field. If the control is non-editable setting this property has no effect. If the control is editable, setting this property sets the contents of the text field.
The default value is "".
This property can be used as the source for data binding. When this property is modified, it dispatches the valueCommit event.
Implementation
public function get text():String public function set text(value:String):voidtextInput | property |
protected var textInput:mx.core:ITextInput| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The internal TextInput subcomponent that displays the current selection.
textInputStyleFilters | property |
textInputStyleFilters:Object [read-only] | Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The set of styles to pass from the ComboBase to the text input.
These styles are ignored if you set
the textInputStyleName style property.
Implementation
protected function get textInputStyleFilters():ObjectRelated API Elements
value | property |
value:Object [read-only] | Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The value of the selected item. If the item is a Number or String,
the value is the item. If the item is an object, the value is
the data property, if it exists, or the label
property, if it exists.
Note: Using the selectedItem property
is often preferable to using this property. The value
property exists for backward compatibility with older applications.
This property can be used as the source for data binding. When this property is modified, it dispatches the valueCommit event.
Implementation
public function get value():ObjectConstructor Detail
ComboBase | () | Constructor |
public function ComboBase()| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Constructor.
Method Detail
calculatePreferredSizeFromData | () | method |
protected function calculatePreferredSizeFromData(numItems:int):Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Determines default values of the height and width to use for the
entries in the drop-down list.
Each subclass of ComboBase must implement this method and return
an Object containing two properties: width and
height.
Parameters
numItems:int — The number of items to check to determine the size.
|
Object — An Object with width and height
properties.
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collectionChangeHandler | () | method |
protected function collectionChangeHandler(event:Event):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Responds to changes to the data provider. The component will adjust
the selectedIndex property if items are added or removed
before the component's selected item.
Parameters
event:Event — The CollectionEvent dispatched from the collection.
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Related API Elements
downArrowButton_buttonDownHandler | () | method |
protected function downArrowButton_buttonDownHandler(event:FlexEvent):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Performs some action when the drop-down button is pressed. This is an abstract base class implementation, so it has no effect and is overridden by the subclasses.
Parameters
event:FlexEvent — The event that is triggered when the drop-down button is pressed.
|
itemToUID | () | method |
protected function itemToUID(data:Object):String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Determines the UID for a dataProvider item. Every dataProvider item must have or will be assigned a unique identifier (UID).
Parameters
data:Object — A dataProvider item.
|
String — A unique identifier.
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measure | () | method |
override protected function measure():void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Determines the measuredWidth and
measuredHeight properties of the control.
The measured width is the width of the widest text
in the dataProvider
plus the width of the drop-down button.
The measured height is the larger of either the button or the text.
If no data provider has been set or there are no items
in the data provider, the measuredWidth property is set to
UIComponent.DEFAULT_MEASURED_WIDTH and the
measuredHeight property is set
to UIComponent.DEFAULT_MEASURED_HEIGHT.
Related API Elements
textInput_changeHandler | () | method |
protected function textInput_changeHandler(event:Event):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Handles changes to the TextInput that serves as the editable
text field in the component. The method sets
selectedIndex to -1 (and therefore
selectedItem to null).
Parameters
event:Event — The event that is triggered each time the text in the control changes.
|
updateDisplayList | () | method |
override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Sizes and positions the internal components in the given width and height. The drop-down button is placed all the way to the right and the text field fills the remaining area.
Parameters
unscaledWidth:Number — Specifies the width of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleX property of the component.
| |
unscaledHeight:Number — Specifies the height of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleY property of the component.
|
Related API Elements
Mon Apr 10 2017, 12:28 PM -07:00