Package | spark.components |
Class | public class ComboBox |
Inheritance | ComboBox ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Implements | IIMESupport |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 4 |
Runtime Versions: | Flash Player 10, AIR 1.5 |
![]() | Because this component does not define a skin for the mobile theme, Adobe recommends that you not use it in a mobile application. Alternatively, you can define your own mobile skin for the component. For more information, see Basics of mobile skinning. |
The ComboBox control is a child class of the DropDownListBase control. Like the DropDownListBase control, when the user selects an item from the drop-down list in the ComboBox control, the data item appears in the prompt area of the control.
One difference between the controls is that the prompt area of the ComboBox control is implemented by using the TextInput control, instead of the Label control for the DropDownList control. Therefore, a user can edit the prompt area of the control to enter a value that is not one of the predefined options.
For example, the DropDownList control only lets the user select
from a list of predefined items in the control.
The ComboBox control lets the user either select a predefined item,
or enter a new item into the prompt area.
When the user enters a new item, the selectedIndex
property
is set to -3.
Your application can recognize that a new item has been entered and,
optionally, add it to the list of items in the control.
The ComboBox control also searches the item list as the user enters characters into the prompt area. As the user enters characters, the drop-down area of the control opens. It then and scrolls to and highlights the closest match in the item list.
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.
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.
The ComboBox control has the following default characteristics:
Characteristic | Description |
---|---|
Default size | 146 pixels wide by 23 pixels high |
Minimum size | 20 pixels wide by 23 pixels high |
Maximum size | 10000 pixels wide and 10000 pixels high |
Default skin class | spark.skins.spark.ComboBoxSkin
spark.skins.spark.ComboBoxTextInputSkin |
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The <s:ComboBox>
tag inherits all of the tag
attributes of its superclass and adds the following tag attributes:
<s:ComboBox Properties itemMatchingFunction="null" labelToItemFunction="null" maxChars="0" openOnInput="true" prompt="null" restrict="" Styles paddingBottom="3" paddingLeft="3" paddingRight="3" paddingTop="5" />
Default MXML PropertydataProvider
More examples
Related API Elements
Property | Defined By | ||
---|---|---|---|
![]() | accessibilityImplementation : AccessibilityImplementation
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
![]() | accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
![]() | alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
![]() | 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 | |
![]() | 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 | |
![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
![]() | contextMenu : NativeMenu
Specifies the context menu associated with this object. | InteractiveObject | |
![]() | dropTarget : DisplayObject [read-only]
Specifies the display object over which the sprite is being dragged, or on
which the sprite was dropped. | Sprite | |
![]() | filters : Array
An indexed array that contains each filter object currently associated with the display object. | DisplayObject | |
![]() | 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 | |
![]() | hitArea : Sprite
Designates another sprite to serve as the hit area for a sprite. | Sprite | |
![]() | loaderInfo : LoaderInfo [read-only]
Returns a LoaderInfo object containing information about loading the file
to which this display object belongs. | DisplayObject | |
![]() | mask : DisplayObject
The calling display object is masked by the specified mask object. | DisplayObject | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | opaqueBackground : Object
Specifies whether the display object is opaque with a certain background color. | DisplayObject | |
![]() | 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 | |
![]() | scale9Grid : Rectangle
The current scaling grid that is in effect. | DisplayObject | |
![]() | scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
![]() | 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 | |
![]() | 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 | |
![]() | tabIndex : int
Specifies the tab ordering of objects in a SWF file. | InteractiveObject | |
![]() | textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | DisplayObjectContainer | |
![]() | 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 |
Method | Defined By | ||
---|---|---|---|
![]() | 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 | |
![]() |
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 | |
![]() |
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | DisplayObjectContainer | |
![]() |
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | DisplayObject | |
![]() |
Returns the child display object that exists with the specified name. | DisplayObjectContainer | |
![]() |
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 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 | |
![]() |
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 | |
![]() |
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 | |
![]() |
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 | |
![]() |
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 the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | DisplayObject | |
![]() |
Indicates whether the specified property exists and is enumerable. | Object | |
![]() |
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
![]() |
Removes a listener from the EventDispatcher object. | EventDispatcher | |
![]() |
Raises a virtual keyboard. | InteractiveObject | |
![]() |
Sets the availability of a dynamic property for loop operations. | Object | |
![]() |
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 | |
![]() |
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
![]() |
Returns the primitive value of the specified object. | Object | |
![]() |
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
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.
Style | Description | Defined By | ||
---|---|---|---|---|
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Specifies the baseline to which the dominant baseline aligns. | SkinnableDataContainer | ||
![]() | 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: Object CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Amount to shift the baseline. | SkinnableDataContainer | ||
![]() | 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 | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The type of CFF hinting used for this text. | SkinnableDataContainer | ||
![]() | Type: uint Format: Color CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Color of the text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The type of digit case used for this text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Type of digit width used for this text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Specifies the default bidirectional embedding level of the text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Specifies which element baseline snaps to the alignmentBaseline to determine the vertical position of the element on the line. | SkinnableDataContainer | ||
![]() | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The class to create instance of for the drag indicator during drag and drop operations initiated by the List. | List | ||
![]() | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: 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. | List | ||
![]() | 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: Class Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Name of the skin class to use for this component when a validation error occurs. | SkinnableComponent | ||
![]() | 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: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The name of the font to use, or a comma-separated list of font names. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Font lookup to use. | SkinnableDataContainer | ||
![]() | Type: Number Format: Length CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Height of the text, in pixels. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Determines whether the text is italic font. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Determines whether the text is boldface. | SkinnableDataContainer | ||
![]() | 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: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Indicates under what conditions the horizontal scroll bar is displayed. | List | ||
![]() | 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 Runtime Versions: Flash10, AIR 1.5 Rule used to justify text in a paragraph. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The style used for justification of the paragraph. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The style used for justification of the paragraph. | SkinnableDataContainer | ||
![]() | 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 | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Controls which of the ligatures that are defined in the font may be used in the text. | SkinnableDataContainer | ||
![]() | Type: Object CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Leading controls for the text. | SkinnableDataContainer | ||
![]() | Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 If true, applies strikethrough, a line drawn through the middle of the text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The locale of the text. | SkinnableDataContainer | ||
paddingBottom | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Bottom inset, in pixels, for the text in the prompt area of the control. The default value is 3 . | ComboBox | ||
paddingLeft | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Left inset, in pixels, for the text in the prompt area of the control. The default value is 3 . | ComboBox | ||
paddingRight | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Right inset, in pixels, for the text in the prompt area of the control. The default value is 3 . | ComboBox | ||
paddingTop | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Top inset, in pixels, for the text in the prompt area of the control. The default value is 5 . | ComboBox | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The rendering mode used for this text which applies only to embedded fonts. | SkinnableDataContainer | ||
![]() | 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 | ||
![]() | Type: Class Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Name of the skin class to use for this component. | SkinnableComponent | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Alignment of text within a container. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Alignment of the last line in the paragraph relative to the container in justified text. | SkinnableDataContainer | ||
![]() | Type: Number CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Alpha (transparency) value for the text. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Determines whether the text is underlined. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Specifies options for justifying text. | SkinnableDataContainer | ||
![]() | 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 | ||
![]() | Type: Number Format: Time CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: 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. | List | ||
![]() | Type: Object CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The amount of tracking (manual kerning) to be applied to the left of each character. | SkinnableDataContainer | ||
![]() | Type: Object CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The amount of tracking (manual kerning) to be applied to the right of each character. | SkinnableDataContainer | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The type of typographic case used for this text. | SkinnableDataContainer | ||
![]() | 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 | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Indicates under what conditions the vertical scroll bar is displayed. | List |
This component uses skins made up of skin parts. Do not set the skin parts directly. The component's skin sets the skin parts.
Skin Part | Description | Defined By | ||
---|---|---|---|---|
![]() | Required: false Part Type: Static Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: 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 | ||
![]() | Required: false Part Type: Static Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 A skin part that defines the drop-down list area. When the DropDownListBase is open, clicking anywhere outside of the dropDown skin part closes the drop-down list. | DropDownListBase | ||
![]() | Required: false Part Type: Dynamic Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: 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 The IFactory must return an object of type DisplayObject. | List | ||
![]() | Required: true Part Type: Static Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 A skin part that defines the anchor button. | DropDownListBase | ||
![]() | Required: false Part Type: Static Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The optional Scroller used to scroll the List. | List | ||
textInput:TextInput | Required: false Part Type: Static Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 Optional skin part that holds the input text or the selectedItem text. | ComboBox |
To skin the component, implement a skin that defines the following states. Although you must implement all skin states, a skin state can be empty. An empty skin state specifies no changes to the default skin state.
<?xml version="1.0" encoding="utf-8"?> <!-- Simple example to demonstrate the Spark ComboBox control --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"> <fx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] public var complexDP:ArrayCollection = new ArrayCollection( [ {ingredient:"Salmon", category:"Meat"}, {ingredient:"Potato", category:"Starch"}, {ingredient:"Cucumber", category:"Vegetable"}, {ingredient:"Steak", category:"Meat"}, {ingredient:"Rice", category:"Starch"}, {ingredient:"Cumin", category:"Spice"} ] ); <!-- Function to handel custom input strings --> private function myLabelToItemFunction(input:String):* { <!-- Returns object that matches items in dataProvider --> return {ingredient:input, category:"mystery"}; } ]]> </fx:Script> <s:Panel title="Spark ComboBox Example" width="75%" height="75%"> <s:layout> <s:VerticalLayout paddingTop="10" paddingLeft="10"/> </s:layout> <!-- Label that displayed current property values --> <s:Label text="Index : {cb.selectedIndex} Item : {cb.selectedItem.ingredient} Type : {cb.selectedItem.category}"/> <!-- ComboBox with custom labelToItem function --> <s:ComboBox id="cb" dataProvider="{complexDP}" width="150" labelToItemFunction="{myLabelToItemFunction}" selectedIndex="0" labelField="ingredient"/> </s:Panel> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00