Packagefl.controls
Classpublic class ComboBox
InheritanceComboBox Inheritance UIComponent Inheritance Sprite Inheritance DisplayObjectContainer Inheritance InteractiveObject Inheritance DisplayObject Inheritance EventDispatcher Inheritance Object
Implements IFocusManagerComponent

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

The ComboBox component contains a drop-down list from which the user can select one value. Its functionality is similar to that of the SELECT form element in HTML. The ComboBox component can be editable, in which case the user can type entries that are not in the list into the TextInput portion of the ComboBox component.

View the examples

See also

List
TextInput


Public Properties
 PropertyDefined By
 InheritedaccessibilityProperties : AccessibilityProperties
The current accessibility options for this display object.
DisplayObject
 Inheritedalpha : Number
Indicates the alpha transparency value of the object specified.
DisplayObject
 InheritedblendMode : String
A value from the BlendMode class that specifies which blend mode to use.
DisplayObject
 InheritedblendShader : Shader
[write-only] Sets a shader that is used for blending the foreground and background.
DisplayObject
 InheritedbuttonMode : Boolean
Specifies the button mode of this sprite.
Sprite
 InheritedcacheAsBitmap : Boolean
If set to true, Flash Player or Adobe AIR caches an internal bitmap representation of the display object.
DisplayObject
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 InheritedcontextMenu : NativeMenu
Specifies the context menu associated with this object.
InteractiveObject
  dataProvider : DataProvider
Gets or sets the data model of the list of items to be viewed.
ComboBox
 InheriteddoubleClickEnabled : Boolean
Specifies whether the object receives doubleClick events.
InteractiveObject
  dropdown : List
[read-only] Gets a reference to the List component that the ComboBox component contains.
ComboBox
  dropdownWidth : Number
Gets or sets the maximum width of the drop-down list, in pixels.
ComboBox
 InheriteddropTarget : DisplayObject
[read-only] Specifies the display object over which the sprite is being dragged, or on which the sprite was dropped.
Sprite
  editable : Boolean
Gets or sets a Boolean value that indicates whether the ComboBox component is editable or read-only.
ComboBox
 Inheritedenabled : Boolean
Gets or sets a value that indicates whether the component can accept user interaction.
UIComponent
 Inheritedfilters : Array
An indexed array that contains each filter object currently associated with the display object.
DisplayObject
 InheritedfocusEnabled : Boolean
Gets or sets a Boolean value that indicates whether the component can receive focus after the user clicks it.
UIComponent
 InheritedfocusManager : IFocusManager
Gets or sets the FocusManager that controls focus for this component and its peers.
UIComponent
 InheritedfocusRect : Object
Specifies whether this object displays a focus rectangle.
InteractiveObject
 Inheritedgraphics : Graphics
[read-only] Specifies the Graphics object that belongs to this sprite where vector drawing commands can occur.
Sprite
 Inheritedheight : Number
[override] Gets or sets the height of the component, in pixels.
UIComponent
 InheritedhitArea : Sprite
Designates another sprite to serve as the hit area for a sprite.
Sprite
  labelField : String
Gets or sets the name of the field in the dataProvider object to be displayed as the label for the TextInput field and drop-down list.
ComboBox
  labelFunction : Function
Gets or sets the function to be used to obtain the label for the item.
ComboBox
  length : int
[read-only] Gets the number of items in the list.
ComboBox
 InheritedloaderInfo : LoaderInfo
[read-only] Returns a LoaderInfo object containing information about loading the file to which this display object belongs.
DisplayObject
 Inheritedmask : DisplayObject
The calling display object is masked by the specified mask object.
DisplayObject
 InheritedmouseChildren : Boolean
Determines whether or not the children of the object are mouse enabled.
DisplayObjectContainer
 InheritedmouseEnabled : Boolean
Specifies whether this object receives mouse messages.
InteractiveObject
 InheritedmouseFocusEnabled : Boolean
Gets or sets a value that indicates whether the component can receive focus after the user clicks it.
UIComponent
 InheritedmouseX : Number
[read-only] Indicates the x coordinate of the mouse position, in pixels.
DisplayObject
 InheritedmouseY : Number
[read-only] Indicates the y coordinate of the mouse position, in pixels.
DisplayObject
 Inheritedname : String
Indicates the instance name of the DisplayObject.
DisplayObject
 InheritednumChildren : int
[read-only] Returns the number of children of this object.
DisplayObjectContainer
 InheritedopaqueBackground : Object
Specifies whether the display object is opaque with a certain background color.
DisplayObject
 Inheritedparent : DisplayObjectContainer
[read-only] Indicates the DisplayObjectContainer object that contains this display object.
DisplayObject
  prompt : String
Gets or sets the prompt for the ComboBox component.
ComboBox
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
  restrict : String
Gets or sets the characters that a user can enter in the text field.
ComboBox
 Inheritedroot : 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
 Inheritedrotation : Number
Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation.
DisplayObject
 InheritedrotationX : Number
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.
DisplayObject
 InheritedrotationY : Number
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.
DisplayObject
 InheritedrotationZ : Number
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.
DisplayObject
  rowCount : uint
Gets or sets the maximum number of rows that can appear in a drop-down list that does not have a scroll bar.
ComboBox
 Inheritedscale9Grid : Rectangle
The current scaling grid that is in effect.
DisplayObject
 InheritedscaleX : Number
[override] Multiplies the current width of the component by a scale factor.
UIComponent
 InheritedscaleY : Number
[override] Multiplies the current height of the component by a scale factor.
UIComponent
 InheritedscaleZ : Number
Indicates the depth scale (percentage) of an object as applied from the registration point of the object.
DisplayObject
 InheritedscrollRect : Rectangle
The scroll rectangle bounds of the display object.
DisplayObject
  selectedIndex : int
Gets or sets the index of the item that is selected in a single-selection list.
ComboBox
  selectedItem : Object
Gets or sets the value of the item that is selected in the drop-down list.
ComboBox
  selectedLabel : String
[read-only] Gets the string that is displayed in the TextInput portion of the ComboBox component.
ComboBox
 InheritedsoundTransform : flash.media:SoundTransform
Controls sound within this sprite.
Sprite
 Inheritedstage : Stage
[read-only] The Stage of the display object.
DisplayObject
 InheritedtabChildren : Boolean
Determines whether the children of the object are tab enabled.
DisplayObjectContainer
 InheritedtabEnabled : Boolean
Specifies whether this object is in the tab order.
InteractiveObject
 InheritedtabIndex : int
Specifies the tab ordering of objects in a SWF file.
InteractiveObject
  text : String
Gets or sets the text that the text box contains in an editable ComboBox component.
ComboBox
  textField : fl.controls:TextInput
[read-only] Gets a reference to the TextInput component that the ComboBox component contains.
ComboBox
 InheritedtextSnapshot : flash.text:TextSnapshot
[read-only] Returns a TextSnapshot object for this DisplayObjectContainer instance.
DisplayObjectContainer
 Inheritedtransform : flash.geom:Transform
An object with properties pertaining to a display object's matrix, color transform, and pixel bounds.
DisplayObject
 InheriteduseHandCursor : Boolean
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the mouse rolls over a sprite in which the buttonMode property is set to true.
Sprite
  value : String
[read-only] Gets the label of an item in an editable ComboBox component.
ComboBox
 Inheritedversion : String = "3.0.0.16"
The version number of the components.
UIComponent
 Inheritedvisible : Boolean
[override] Gets or sets a value that indicates whether the current component instance is visible.
UIComponent
 Inheritedwidth : Number
[override] Gets or sets the width of the component, in pixels.
UIComponent
 Inheritedx : Number
[override] Gets or sets the x coordinate that represents the position of the component along the x axis within its parent container.
UIComponent
 Inheritedy : Number
[override] Gets or sets the y coordinate that represents the position of the component along the y axis within its parent container.
UIComponent
 Inheritedz : Number
Indicates the z coordinate position along the z-axis of the DisplayObject instance relative to the 3D parent container.
DisplayObject
Public Methods
 MethodDefined By
  
Creates a new ComboBox component instance.
ComboBox
 Inherited
Adds a child DisplayObject instance to this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
Adds a child DisplayObject instance to this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
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
  
Appends an item to the end of the list of items.
ComboBox
  
addItemAt(item:Object, index:uint):void
Inserts an item into the list at the specified index location.
ComboBox
 Inherited
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
 Inherited
Deletes a style property from this component instance.
UIComponent
  
Closes the drop-down list.
ComboBox
 Inherited
Determines whether the specified display object is a child of the DisplayObjectContainer instance or the instance itself.
DisplayObjectContainer
 Inherited
Dispatches an event into the event flow.
EventDispatcher
 Inherited
Shows or hides the focus indicator on this component.
UIComponent
 Inherited
Initiates an immediate draw operation, without invalidating everything as invalidateNow does.
UIComponent
 Inherited
getBounds(targetCoordinateSpace:DisplayObject):Rectangle
Returns a rectangle that defines the area of the display object relative to the coordinate system of the targetCoordinateSpace object.
DisplayObject
 Inherited
Returns the child display object instance that exists at the specified index.
DisplayObjectContainer
 Inherited
Returns the child display object that exists with the specified name.
DisplayObjectContainer
 Inherited
Returns the index position of a child DisplayObject instance.
DisplayObjectContainer
 Inherited
Retrieves the object that currently has focus.
UIComponent
  
Retrieves the item at the specified index.
ComboBox
 Inherited
Returns an array of objects that lie under the specified point and are children (or grandchildren, and so on) of this DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
getRect(targetCoordinateSpace:DisplayObject):Rectangle
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
 Inherited
Retrieves a style property that is set in the style lookup chain of the component.
UIComponent
  
[static] Retrieves the default style map for the current component.
ComboBox
 Inherited
Converts the point object from the Stage (global) coordinates to the display object's (local) coordinates.
DisplayObject
 Inherited
Converts a two-dimensional point from the Stage (global) coordinates to a three-dimensional display object's (local) coordinates.
DisplayObject
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
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
 Inherited
hitTestPoint(x:Number, y:Number, shapeFlag:Boolean = false):Boolean
Evaluates the display object to see if it overlaps or intersects with the point specified by the x and y parameters.
DisplayObject
 Inherited
invalidate(property:String, callLater:Boolean = true):void
Marks a property as invalid and redraws the component on the next frame unless otherwise specified.
UIComponent
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
  
Retrieves the string that the renderer displays for the given data object based on the labelField and labelFunction properties.
ComboBox
 Inherited
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
 Inherited
Converts the point object from the display object's (local) coordinates to the Stage (global) coordinates.
DisplayObject
 Inherited
[static] Merges the styles from multiple classes into one object.
UIComponent
 Inherited
Moves the component to the specified position within its parent.
UIComponent
  
Opens the drop-down list.
ComboBox
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
  
Removes all items from the list.
ComboBox
 Inherited
Removes the specified child DisplayObject instance from the child list of the DisplayObjectContainer instance.
DisplayObjectContainer
 Inherited
Removes a child DisplayObject from the specified index position in the child list of the DisplayObjectContainer.
DisplayObjectContainer
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
  
Removes the specified item from the list.
ComboBox
  
Removes the item at the specified index position.
ComboBox
  
Replaces the item at the specified index location with another item.
ComboBox
 Inherited
Changes the position of an existing child in the display object container.
DisplayObjectContainer
 Inherited
Sets the focus to this component.
UIComponent
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
setSize(width:Number, height:Number):void
Sets the component to the specified width and height.
UIComponent
 Inherited
setStyle(style:String, value:Object):void
Sets a style property on this component instance.
UIComponent
  
sortItems(... sortArgs):*
Sorts the elements of the current data provider.
ComboBox
  
sortItemsOn(field:String, options:Object = null):*
Sorts the elements of the current data provider by one or more of its fields.
ComboBox
 Inherited
startDrag(lockCenter:Boolean = false, bounds:Rectangle = null):void
Lets the user drag the specified sprite.
Sprite
 Inherited
Ends the startDrag() method.
Sprite
 Inherited
Swaps the z-order (front-to-back order) of the two specified child objects.
DisplayObjectContainer
 Inherited
swapChildrenAt(index1:int, index2:int):void
Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the child list.
DisplayObjectContainer
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Validates and updates the properties and layout of this object, redrawing it if necessary.
UIComponent
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Protected Methods
 MethodDefined By
 Inherited
Returns the specified style for a component, considering all styles set on the global level, component level and instance level.
UIComponent
Events
 Event Summary Defined By
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
 InheritedDispatched when a display object is added to the display list.DisplayObject
 InheritedDispatched when a display object is added to the on stage display list, either directly or through the addition of a sub tree in which the display object is contained.DisplayObject
  Dispatched when the user changes the selection in the ComboBox component or, if the ComboBox component is editable, each time the user enters a keystroke in the text field.ComboBox
 InheritedDispatched when the user selects 'Clear' (or 'Delete') from the text context menu.InteractiveObject
 InheritedDispatched when a user presses and releases the main button of the user's pointing device over the same InteractiveObject.InteractiveObject
  Dispatched when the drop-down list is dismissed for any reason.ComboBox
 InheritedDispatched when a user gesture triggers the context menu associated with this interactive object in an AIR application.InteractiveObject
 InheritedDispatched when the user activates the platform specific accelerator key combination for a copy operation or selects 'Copy' from the text context menu.InteractiveObject
 InheritedDispatched when the user activates the platform specific accelerator key combination for a cut operation or selects 'Cut' from the text context menu.InteractiveObject
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
 InheritedDispatched when a user presses and releases the main button of a pointing device twice in rapid succession over the same InteractiveObject when that object's doubleClickEnabled flag is set to true.InteractiveObject
  Dispatched if the editable property is set to true and the user presses the Enter key while typing in the editable text field.ComboBox
 Inherited[broadcast event] Dispatched when the playhead is entering a new frame.DisplayObject
 Inherited[broadcast event] Dispatched when the playhead is exiting the current frame.DisplayObject
 InheritedDispatched after a display object gains focus.InteractiveObject
 InheritedDispatched after a display object loses focus.InteractiveObject
 Inherited[broadcast event] Dispatched after the constructors of frame display objects have run but before frame scripts have run.DisplayObject
 InheritedDispatched after the component visibility changes from visible to invisible.UIComponent
   Defines the value of the type property of an itemRollOut event object.ComboBox
   Defines the value of the type property of an itemRollOver event object.ComboBox
 InheritedDispatched when the user presses a key.InteractiveObject
 InheritedDispatched when the user attempts to change focus by using keyboard navigation.InteractiveObject
 InheritedDispatched when the user releases a key.InteractiveObject
 InheritedDispatched when a user presses and releases the middle button of the user's pointing device over the same InteractiveObject.InteractiveObject
 InheritedDispatched when a user presses the middle pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user presses the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user attempts to change focus by using a pointer device.InteractiveObject
 InheritedDispatched when a user moves the pointing device while it is over an InteractiveObject.InteractiveObject
 InheritedDispatched when the user moves a pointing device away from an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a mouse wheel is spun over an InteractiveObject instance.InteractiveObject
 InheritedDispatched after the component is moved.UIComponent
 InheritedDispatched by the drag initiator InteractiveObject when the user releases the drag gesture.InteractiveObject
 InheritedDispatched by the target InteractiveObject when a dragged object is dropped on it and the drop has been accepted with a call to DragManager.acceptDragDrop().InteractiveObject
 InheritedDispatched by an InteractiveObject when a drag gesture enters its boundary.InteractiveObject
 InheritedDispatched by an InteractiveObject when a drag gesture leaves its boundary.InteractiveObject
 InheritedDispatched by an InteractiveObject continually while a drag gesture remains within its boundary.InteractiveObject
 InheritedDispatched at the beginning of a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.InteractiveObject
 InheritedDispatched during a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.InteractiveObject
  Dispatched when the user clicks the drop-down button to display the drop-down list.ComboBox
 InheritedDispatched when the user activates the platform specific accelerator key combination for a paste operation or selects 'Paste' from the text context menu.InteractiveObject
 InheritedDispatched when a display object is about to be removed from the display list.DisplayObject
 InheritedDispatched when a display object is about to be removed from the display list, either directly or through the removal of a sub tree in which the display object is contained.DisplayObject
 Inherited[broadcast event] Dispatched when the display list is about to be updated and rendered.DisplayObject
 InheritedDispatched after the component is resized.UIComponent
 InheritedDispatched when a user presses and releases the right button of the user's pointing device over the same InteractiveObject.InteractiveObject
 InheritedDispatched when a user presses the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when a user releases the pointing device button over an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device away from an InteractiveObject instance.InteractiveObject
 InheritedDispatched when the user moves a pointing device over an InteractiveObject instance.InteractiveObject
  Dispatched when the user scrolls the drop-down list of the ComboBox component.ComboBox
 InheritedDispatched when the user activates the platform specific accelerator key combination for a select all operation or selects 'Select All' from the text context menu.InteractiveObject
 InheritedDispatched after the component visibility changes from invisible to visible.UIComponent
 InheritedDispatched when the value of the object's tabChildren flag changes.InteractiveObject
 InheritedDispatched when the object's tabEnabled flag changes.InteractiveObject
 InheritedDispatched when the value of the object's tabIndex property changes.InteractiveObject
 InheritedDispatched when a user enters one or more characters of text.InteractiveObject
Styles
 Style Description Defined By
  
buttonWidth
Type: Number Format: Length
The space that separates the right edge of the component from the text representing the selected item, in pixels. The button is part of the background skin. The default value is 24.
ComboBox
  
cellRenderer
Type: Class
The class that provides the cell renderer for each item in the component. The default value is fl.controls.listClasses.CellRenderer.
ComboBox
  
contentPadding
Type: Number Format: Length
Padding between the content (the component and scroll bar), and the outside edge of the background, in pixels. The default value is 3.
ComboBox
  
disabledAlpha
Type: Class
The alpha value to set the list to when the enabled property is false. The default value is 0.5.
ComboBox
  
disabledSkin
Type: Class
The name of the class that provides the background that appears in the ComboBox component when the enabled property of the component is set to false. The default value is ComboBox_disabledSkin.
ComboBox
 InheritedType: flash.text.TextFormat
The TextFormat object to use to render the component label when the button is disabled.
UIComponent
  
downArrowDisabledSkin
Type: Class
Name of the class to use as the skin for the down arrow button of the scroll bar when it is disabled. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowDown_disabledSkin.
ComboBox
  
downArrowDownSkin
Type: Class
Name of the class to use as the skin for the down arrow button of the scroll bar when you click the arrow button. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowDown_downSkin.
ComboBox
  
downArrowOverSkin
Type: Class
Name of the class to use as the skin for the down arrow button of the scroll bar when the mouse pointer is over the arrow button. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowDown_overSkin.
ComboBox
  
downArrowUpSkin
Type: Class
Name of the class to use as the skin for the down arrow button of the scroll bar. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowDown_upSkin.
ComboBox
  
downSkin
Type: Class
The name of the class that provides the background that appears in the ComboBox component when the mouse is down. The default value is ComboBox_downSkin.
ComboBox
  
embedFonts
Type: Boolean
Indicates whether embedded font outlines are used to render the text field. If this value is true, Flash Player renders the text field by using embedded font outlines. If this value is false, Flash Player renders the text field by using device fonts.

If you set the embedFonts property to true for a text field, you must specify a font for that text by using the font property of a TextFormat object that is applied to the text field. If the specified font is not embedded in the SWF file, the text is not displayed.

The default value is false.
ComboBox
 InheritedType: Number Format: Length
The padding that separates the outside boundaries of the component from the outside edges of the focus indicator, in pixels.
UIComponent
 InheritedType: Class
The skin to be used to display focus indicators.
UIComponent
  
overSkin
Type: Class
The name of the class that provides the background that appears in the ComboBox component when the mouse is over it. The default value is ComboBox_overSkin.
ComboBox
  
repeatDelay
Type: Number Format: Time
The number of milliseconds to wait after the buttonDown event is first dispatched before sending a second buttonDown event. The default value is 500.
ComboBox
  
repeatInterval
Type: Number Format: Time
The interval, in milliseconds, between buttonDown events that are dispatched after the delay that is specified by the repeatDelay style. The default value is 35.
ComboBox
 InheritedType: flash.text.TextFormat
The TextFormat object to use to render the component label.
UIComponent
  
textPadding
Type: Number Format: Length
The space that separates the border from the text representing the selected item, in pixels. The default value is 3.
ComboBox
  
thumbArrowUpSkin
Type: Class
Name of the class to use as the skin used for the thumb of the scroll bar. The default value is ScrollThumb_upSkin.
ComboBox
  
thumbDisabledSkin
Type: Class
The skin that is used to indicate the disabled state of the thumb. The default value is ScrollThumb_upSkin.
ComboBox
  
thumbDownSkin
Type: Class
Name of the class to use as the skin for the thumb of the scroll bar when you click the thumb. The default value is ScrollThumb_downSkin.
ComboBox
  
thumbIcon
Type: Class
Name of the class to use as the icon for the thumb of the scroll bar. The default value is ScrollBar_thumbIcon.
ComboBox
  
thumbOverSkin
Type: Class
Name of the class to use as the skin for the thumb of the scroll bar when the mouse pointer is over the thumb. The default value is ScrollThumb_overSkin.
ComboBox
  
trackDisabledSkin
Type: Class
The skin that is used to indicate a disabled track. The default value is ScrollTrack_Skin.
ComboBox
  
trackDownSkin
Type: Class
The skin that is used to indicate the down state of a disabled skin. The default value is ScrollTrack_Skin.
ComboBox
  
trackOverSkin
Type: Class
The skin that is used to indicate the mouseover state for the scroll track. The default value is ScrollTrack_Skin.
ComboBox
  
trackUpSkin
Type: Class
The skin used to indicate the mouse up state for the scroll track. The default value is ScrollTrack_Skin.
ComboBox
  
upArrowDisabledSkin
Type: Class
Name of the class to use as the skin for the up arrow button of the scroll bar when it is disabled. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowUp_disabledSkin.
ComboBox
  
upArrowDownSkin
Type: Class
Name of the class to use as the skin for the up arrow button of the scroll bar when you click the arrow button. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowUp_downSkin.
ComboBox
  
upArrowOverSkin
Type: Class
Name of the class to use as the skin for the up arrow button of the scroll bar when the mouse pointer is over the arrow button. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowUp_overSkin.
ComboBox
  
upArrowUpSkin
Type: Class
Name of the class to use as the skin for the up arrow button of the scroll bar. If you change the skin, either graphically or programmatically, you should ensure that the new skin is the same height (for horizontal scroll bars) or width (for vertical scroll bars) as the track. The default value is ScrollArrowUp_upSkin.
ComboBox
  
upSkin
Type: Class
The name of the class that provides the background of the ComboBox component. The default value is ComboBox_upSkin.
ComboBox
Property Detail
dataProviderproperty
dataProvider:DataProvider

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the data model of the list of items to be viewed. A data provider can be shared by multiple list-based components. Changes to the data provider are immediately available to all components that use it as a data source.



Implementation
    public function get dataProvider():DataProvider
    public function set dataProvider(value:DataProvider):void

See also


Example
The following example demonstrates how to set a data provider for a ComboBox. As the data provider is updated, the ComboBox is updated:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();

var cb:ComboBox = new ComboBox();
cb.dataProvider = dp;
addChild(cb);

var counter = 0;
var t:Timer = new Timer(500);
t.addEventListener(TimerEvent.TIMER,addAnotherItem);
t.start();

function addAnotherItem(e:TimerEvent = null):void {
    dp.addItem( { label: "Item " + counter++ } );
}
dropdownproperty 
dropdown:List  [read-only]

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets a reference to the List component that the ComboBox component contains. The List subcomponent is not instantiated within the ComboBox until it must be displayed. However, the list is created when the dropdown property is accessed.



Implementation
    public function get dropdown():List
dropdownWidthproperty 
dropdownWidth:Number

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the maximum width of the drop-down list, in pixels. The default value of this property is the width of the ComboBox component (the width of the TextInput instance plus the width of the BaseButton instance).

The default value is 100.



Implementation
    public function get dropdownWidth():Number
    public function set dropdownWidth(value:Number):void

Example
The following example creates a ComboBox component instance and sets its dropdownWidth property based on the value of a Slider component:

import fl.controls.ComboBox;
import fl.controls.Slider;
import fl.events.SliderEvent;

var mySlider:Slider = new Slider();
mySlider.minimum = 50;
mySlider.maximum = 150;
mySlider.liveDragging = true;
mySlider.snapInterval = 5;
mySlider.tickInterval = 10;
mySlider.addEventListener(SliderEvent.CHANGE, changeHandler);
mySlider.move(10, 10);
addChild(mySlider);

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item A"});
myComboBox.addItem({label:"Item B"});
myComboBox.move(10, 30);
addChild(myComboBox);

mySlider.value = myComboBox.dropdownWidth;

function changeHandler(event:SliderEvent):void {
    myComboBox.dropdownWidth = event.value;
}
The following example creates a ComboBox component instance and sets its dropdownWidth property based on the length of the text in the drop-down list:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"The quick brown fox"});
myComboBox.addItem({label:"Lorem ipsum"});
myComboBox.addItem({label:"Little Miss Muffet"});
myComboBox.addItem({label:"Goldilocks and the three bears"});
myComboBox.addItem({label:"Jack and Jill"});
myComboBox.move(10, 30);
addChild(myComboBox);

var maxLength:Number = 0;
var i:uint;
for (i = 0; i < myComboBox.length; i++) {
    myComboBox.selectedIndex = i;
    myComboBox.drawNow();
    var currText:String = myComboBox.text;
    var currWidth:Number = myComboBox.textField.textWidth;
    maxLength = Math.max(currWidth, maxLength);
    trace(currText, currWidth, maxLength);
}

myComboBox.selectedIndex = -1;
myComboBox.dropdownWidth = maxLength + 20;
myComboBox.open();
editableproperty 
editable:Boolean

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets a Boolean value that indicates whether the ComboBox component is editable or read-only. A value of true indicates that the ComboBox component is editable; a value of false indicates that it is not.

In an editable ComboBox component, a user can enter values into the text box that do not appear in the drop-down list. The text box displays the text of the item in the list. If a ComboBox component is not editable, text cannot be entered into the text box.

The default value is false.



Implementation
    public function get editable():Boolean
    public function set editable(value:Boolean):void

Example
The following example creates a new editable ComboBox instance that adds custom items to the data provider when the enter event is dispatched:

import fl.controls.ComboBox;
import fl.data.DataProvider;
import fl.events.ComponentEvent;

var dp:DataProvider = new DataProvider();

var myComboBox:ComboBox = new ComboBox;
myComboBox.dataProvider = dp;
myComboBox.editable = true;
myComboBox.addEventListener(ComponentEvent.ENTER, enterHandler);
myComboBox.move(10, 10);
addChild(myComboBox);

function enterHandler(event:ComponentEvent):void {
    var myCB:ComboBox = event.currentTarget as ComboBox;
    dp.addItem({label:myCB.text});
    myCB.text = "";
    myCB.sortItemsOn("label", Array.CASEINSENSITIVE);
}
labelFieldproperty 
labelField:String

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the name of the field in the dataProvider object to be displayed as the label for the TextInput field and drop-down list.

By default, the component displays the label property of each dataProvider item. If the dataProvider items do not contain a label property, you can set the labelField property to use a different property.

Note: The labelField property is not used if the labelFunction property is set to a callback function.

The default value is "label".



Implementation
    public function get labelField():String
    public function set labelField(value:String):void

See also


Example
The following example creates a ComboBox and sets the labelField property to set a custom label field:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();
dp.addItem({firstName:"Jane", lastName:"Doe"}); 
dp.addItem({firstName:"Bill", lastName:"Smith"});
dp.addItem({firstName:"Tim", lastName:"Jones"});
dp.sortOn(["firstName","lastName"]);

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.labelField = "firstName";
myComboBox.move(10, 10);
addChild(myComboBox);
labelFunctionproperty 
labelFunction:Function

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the function to be used to obtain the label for the item.

By default, the component displays the label property for a dataProvider item. But some data sets may not have a label field or may not have a field whose value can be used as a label without modification. For example, a given data set might store full names but maintain them in lastName and firstName fields. In such a case, this property could be used to set a callback function that concatenates the values of the lastName and firstName fields into a full name string to be displayed.

Note: The labelField property is not used if the labelFunction property is set to a callback function.



Implementation
    public function get labelFunction():Function
    public function set labelFunction(value:Function):void

See also


Example
This example sets the labelFunction property of a list to a function that formats the string to be displayed in each cell:
import fl.data.DataProvider;
import fl.controls.List;

var myDataProvider:DataProvider = new DataProvider();
myDataProvider.addItem({name:"User A", price:0.43});
myDataProvider.addItem({name:"User B", price:0.34});

var users:List = new List();
users.dataProvider = myDataProvider;
users.labelFunction = myLabelFunction;
addChild(users);

function myLabelFunction(item:Object):String {
    return  item.name + " ($" + item.price.toFixed(2) + ")";
}
The following example creates a ComboBox and sets the labelField property to set a custom label field:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();
dp.addItem({firstName:"Jane", lastName:"Doe"}); 
dp.addItem({firstName:"Bill", lastName:"Smith"});
dp.addItem({firstName:"Tim", lastName:"Jones"});
dp.sortOn(["lastName", "firstName"]);

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.labelFunction = nameLabelFunction;
myComboBox.move(10, 10);
addChild(myComboBox);

function nameLabelFunction(item:Object):String {
    return item.lastName + ", " + item.firstName;
}
lengthproperty 
length:int  [read-only]

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets the number of items in the list. This property belongs to the List component but can be accessed from a ComboBox instance.

The default value is 0.



Implementation
    public function get length():int

See also


Example
The following example creates a ComboBox and sets its rowCount property based on how many items are in the ComboBox:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item A"});
myComboBox.addItem({label:"Item B"});
myComboBox.addItem({label:"Item C"});
myComboBox.addItem({label:"Item D"});
myComboBox.addItem({label:"Item E"});
myComboBox.addItem({label:"Item F"});
myComboBox.rowCount = myComboBox.length / 2;
addChild(myComboBox);
The following example creates a ComboBox and sets its rowCount property based on how many items are in the ComboBox:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();
dp.addItem({label:"Item A"});
dp.addItem({label:"Item B"});
dp.addItem({label:"Item C"});
dp.addItem({label:"Item D"});
dp.addItem({label:"Item E"});
dp.addItem({label:"Item F"});

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.rowCount = myComboBox.length / 2;
addChild(myComboBox);
promptproperty 
prompt:String

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the prompt for the ComboBox component. This prompt is a string that is displayed in the TextInput portion of the ComboBox when the selectedIndex is -1. It is usually a string like "Select one...". If a prompt is not set, the ComboBox component sets the selectedIndex property to 0 and displays the first item in the dataProvider property.

The default value is "".



Implementation
    public function get prompt():String
    public function set prompt(value:String):void

Example
The following example creates a ComboBox component instance, sets its prompt property and resizes the combo box to fit the width of the prompt text:

import fl.controls.ComboBox;

var cbStyles:Object = ComboBox.getStyleDefinition();
var bW:Number = cbStyles.buttonWidth as Number

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Please select an option...";
myComboBox.addItem({label:"Option 1"});
myComboBox.addItem({label:"Option 2"});
myComboBox.drawNow();
myComboBox.width = myComboBox.textField.textWidth + 35;
myComboBox.dropdownWidth = myComboBox.width - bW;
myComboBox.move(10, 10);
addChild(myComboBox);
The following example creates a ComboBox component instance and sets its prompt property based on the number of items in its data provider:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();
dp.addItem({label:"Getting Started"});
dp.addItem({label:"New Features"});
dp.addItem({label:"ActionScript"});
dp.addItem({label:"Components"});
dp.sortOn("label", Array.CASEINSENSITIVE);

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Topics (" + dp.length + ")";
myComboBox.dataProvider = dp;
myComboBox.width = 150;
myComboBox.move(10, 10);
addChild(myComboBox);
restrictproperty 
restrict:String

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the characters that a user can enter in the text field. If the value of the restrict property is a string of characters, you can enter only characters in the string into the text field. The string is read from left to right. If the value of the restrict property is null, you can enter any character. If the value of the restrict property is an empty string (""), you cannot enter any character. You can specify a range by using the hyphen (-) character. This restricts only user interaction; a script can put any character into the text field.

The default value is null.



Implementation
    public function get restrict():String
    public function set restrict(value:String):void

See also


Example
The following example creates an editable ComboBox component that allows only hexadecimal colors to be entered using the restrict property:

import fl.controls.ComboBox;
import fl.data.DataProvider;
import fl.events.ComponentEvent;

var dp:DataProvider = new DataProvider();

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.editable = true;
myComboBox.restrict = "0-9A-F";
myComboBox.textField.maxChars = 6;
myComboBox.addEventListener(ComponentEvent.ENTER, enterHandler);
myComboBox.move(10, 10);
addChild(myComboBox);

function enterHandler(event:ComponentEvent):void {
    var colorStr:String = ComboBox(event.currentTarget).text;
    var colorNum:uint = uint("0x" + colorStr);
    dp.addItem({label:colorStr, value:colorNum});
    dp.sortOn("value", Array.NUMERIC);
    event.currentTarget.text = "";
}
rowCountproperty 
rowCount:uint

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the maximum number of rows that can appear in a drop-down list that does not have a scroll bar. If the number of items in the drop-down list exceeds this value, the list is resized and a scroll bar is displayed, if necessary. If the number of items in the drop-down list is less than this value, the drop-down list is resized to accommodate the number of items that it contains.

This behavior differs from that of the List component, which always shows the number of rows specified by its rowCount property, even if this includes empty space.

The default value is 5.



Implementation
    public function get rowCount():uint
    public function set rowCount(value:uint):void

See also


Example
The following example uses a Slider component to set the rowCount property for a ComboBox component:

import fl.controls.ComboBox;
import fl.controls.Slider;
import fl.events.SliderEvent;

var numItems:uint = 8;

var mySlider:Slider = new Slider();
mySlider.tickInterval = 1;
mySlider.snapInterval = 1;
mySlider.minimum = 1;
mySlider.maximum = numItems;
mySlider.liveDragging = true;
mySlider.move(10, 10);
mySlider.addEventListener(SliderEvent.CHANGE, changeHandler);
addChild(mySlider);

var myComboBox:ComboBox = new ComboBox();
myComboBox.move(10, 30);
addChild(myComboBox);

var i:uint;
for (i = 0; i < numItems; i++) {
    myComboBox.addItem({label:"Item " + i});
}

function changeHandler(event:SliderEvent):void {
    myComboBox.rowCount = event.value;
}
selectedIndexproperty 
selectedIndex:int

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the index of the item that is selected in a single-selection list. A single-selection list is a list in which only one item can be selected at a time.

A value of -1 indicates that no item is selected; if multiple selections are made, this value is equal to the index of the item that was selected last in the group of selected items.

When ActionScript is used to set this property, the item at the specified index replaces the current selection. When the selection is changed programmatically, a change event object is not dispatched.

The default value is 0.



Implementation
    public function get selectedIndex():int
    public function set selectedIndex(value:int):void

See also


Example
The following example uses a Slider component to set the ComboBox component instance's selectedIndex property:

import fl.controls.ComboBox;
import fl.controls.Slider;
import fl.data.DataProvider;
import fl.events.SliderEvent;

var items:XML = <items>
        <item label="Item 1" />
        <item label="Item 2" />
        <item label="Item 3" />
        <item label="Item 4" />
    </items>;

var dp:DataProvider = new DataProvider(items);

var mySlider:Slider = new Slider();
mySlider.liveDragging = true;
mySlider.tickInterval = 1;
mySlider.snapInterval = 1;
mySlider.minimum = 0;
mySlider.maximum = dp.length - 1;
mySlider.width = 100;
mySlider.move(10, 10);
mySlider.addEventListener(SliderEvent.CHANGE, changeHandler);
addChild(mySlider);

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.move(10, 30);
addChild(myComboBox);

function changeHandler(event:SliderEvent):void {
    myComboBox.selectedIndex = event.value;
}
The following example creates a ComboBox component and displays the value of its selectedIndex property in a label on the Stage:

import fl.controls.ComboBox;
import fl.controls.Label;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Please select an item...";
myComboBox.addItem({label:"Item 1"});
myComboBox.addItem({label:"Item 2"});
myComboBox.addItem({label:"Item 3"});
myComboBox.addItem({label:"Item 4"});
myComboBox.width = 150;
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.CHANGE, changeHandler);
addChild(myComboBox);

var myLabel:Label = new Label();
myLabel.autoSize = TextFieldAutoSize.LEFT;
myLabel.text = "selectedIndex:" + myComboBox.selectedIndex;
myLabel.move(myComboBox.x + myComboBox.width + 10, myComboBox.y);
addChild(myLabel);

function changeHandler(event:Event):void {
    myLabel.text = "selectedIndex:" + myComboBox.selectedIndex;
}
selectedItemproperty 
selectedItem:Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the value of the item that is selected in the drop-down list. If the user enters text into the text box of an editable ComboBox component, the selectedItem property is undefined. This property has a value only if the user selects an item or if ActionScript is used to select an item from the drop-down list. If the ComboBox component is not editable, the value of the selectedItem property is always valid. If there are no items in the drop-down list of an editable ComboBox component, the value of this property is null.

The default value is null.



Implementation
    public function get selectedItem():Object
    public function set selectedItem(value:Object):void

See also


Example
The following example uses a Button component to copy items from a ComboBox to a List:

import fl.controls.Button;
import fl.controls.ComboBox;
import fl.controls.List;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Select an item";
myComboBox.addItem({label:"Item A"});
myComboBox.addItem({label:"Item B"});
myComboBox.addItem({label:"Item C"});
myComboBox.move(10, 10);
addChild(myComboBox);

var myButton:Button = new Button();
myButton.label = "Copy";
myButton.move(myComboBox.x + myComboBox.width + 10, myComboBox.y);
myButton.addEventListener(MouseEvent.CLICK, clickHandler);
addChild(myButton);

var myList:List = new List();
myList.rowCount = myList.length;
myList.selectable = false;
myList.move(myComboBox.x, myComboBox.y + myComboBox.height + 10);
addChild(myList);

function clickHandler(event:MouseEvent):void {
    if (myComboBox.selectedIndex > -1) {
        myList.addItem(myComboBox.selectedItem);
        myList.rowCount = myList.length;
    }
}
The following example uses two Label components to display the currently selected item in a ComboBox:

import fl.controls.ComboBox;
import fl.controls.Label;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Select a user:";
myComboBox.addItem({firstName:"Jane", lastName:"Doe"}); 
myComboBox.addItem({firstName:"Bill", lastName:"Smith"});
myComboBox.addItem({firstName:"Tim", lastName:"Jones"});
myComboBox.labelFunction = nameLabelFunction;
myComboBox.width = 120;
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.CHANGE, changeHandler);
addChild(myComboBox);

var firstNameLabel:Label = new Label();
firstNameLabel.text = "";
firstNameLabel.autoSize = TextFieldAutoSize.LEFT;
firstNameLabel.move(myComboBox.x, myComboBox.y + myComboBox.height);
addChild(firstNameLabel);

var lastNameLabel:Label = new Label();
lastNameLabel.text = "";
lastNameLabel.autoSize = TextFieldAutoSize.LEFT;
lastNameLabel.move(firstNameLabel.x, firstNameLabel.y + firstNameLabel.height);
addChild(lastNameLabel);

function changeHandler(event:Event):void {
    var cb:ComboBox = event.currentTarget as ComboBox;
    var item:Object = cb.selectedItem;
    if (cb.selectedIndex > -1) {
        firstNameLabel.text = item.firstName;
        lastNameLabel.text = item.lastName;
    }
}

function nameLabelFunction(item:Object):String {
    return item.lastName + ", " + item.firstName;
}
selectedLabelproperty 
selectedLabel:String  [read-only]

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets the string that is displayed in the TextInput portion of the ComboBox component. This value is calculated from the data by using the labelField or labelFunction property.



Implementation
    public function get selectedLabel():String

See also


Example
The following example uses a Label component to display the selectedLabel property for a ComboBox:

import fl.controls.ComboBox;
import fl.controls.Label;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Select a user:";
myComboBox.addItem({firstName:"Jane", lastName:"Doe"}); 
myComboBox.addItem({firstName:"Bill", lastName:"Smith"});
myComboBox.addItem({firstName:"Tim", lastName:"Jones"});
myComboBox.labelFunction = nameLabelFunction;
myComboBox.width = 120;
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.CHANGE, changeHandler);
addChild(myComboBox);

var myLabel:Label = new Label();
myLabel.text = "";
myLabel.autoSize = TextFieldAutoSize.LEFT;
myLabel.move(myComboBox.x, myComboBox.y + myComboBox.height);
addChild(myLabel);

function changeHandler(event:Event):void {
    var cb:ComboBox = event.currentTarget as ComboBox;
    myLabel.text = "selectedLabel: " + cb.selectedLabel;
}

function nameLabelFunction(item:Object):String {
    return item.lastName + ", " + item.firstName;
}
textproperty 
text:String

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets or sets the text that the text box contains in an editable ComboBox component. For ComboBox components that are not editable, this value is read-only.

The default value is "".



Implementation
    public function get text():String
    public function set text(value:String):void

Example
The following example creates an editable ComboBox that displays the text being entered into a TextArea component instance:

import fl.controls.ComboBox;
import fl.controls.TextArea;
import fl.events.ComponentEvent;

var myComboBox:ComboBox = new ComboBox();
myComboBox.editable = true;
myComboBox.addEventListener(TextEvent.TEXT_INPUT, textInputHandler);
myComboBox.addEventListener(ComponentEvent.ENTER, enterHandler);
myComboBox.width = 300;
myComboBox.move(10, 10);
addChild(myComboBox);

var myTextArea:TextArea = new TextArea();
myTextArea.wordWrap = false;
myTextArea.setSize(300, 200);
myTextArea.move(myComboBox.x, myComboBox.y + myComboBox.height + 10);
addChild(myTextArea)

function textInputHandler(event:TextEvent):void {
    myTextArea.appendText(event.type + ":\n");
    myTextArea.appendText("\t" + event.currentTarget.text + "\n");
    myTextArea.appendText("\t" + event.text + "\n");
    myTextArea.appendText("\n");
    
    autoScroll(myTextArea);
}

function enterHandler(event:ComponentEvent):void {
    myTextArea.appendText(event.type + ":\n");
    myTextArea.appendText("\t" + event.currentTarget.text + "\n");
    myTextArea.appendText("\n");
    autoScroll(myTextArea);
}

function autoScroll(ta:TextArea):void {
    ta.verticalScrollPosition = ta.maxVerticalScrollPosition;
}
textFieldproperty 
textField:fl.controls:TextInput  [read-only]

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets a reference to the TextInput component that the ComboBox component contains. Use this property to access and manipulate the underlying TextInput component. For example, you can use this property to change the selection of the text box or to restrict the set of characters that can be entered into it.



Implementation
    public function get textField():fl.controls:TextInput

Example
The following example creates an editable ComboBox component that allows only 8 characters to be entered:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.editable = true;
myComboBox.textField.maxChars = 8;
myComboBox.move(10, 10);
addChild(myComboBox);
The following example creates a ComboBox and sets the text format for the embedded text field:

import fl.controls.ComboBox;

var comicSansTF:TextFormat = new TextFormat();
comicSansTF.font = "Comic Sans MS";

var myComboBox:ComboBox = new ComboBox();
myComboBox.textField.setStyle("textFormat", comicSansTF);
myComboBox.addItem({label:"Item A"});
myComboBox.addItem({label:"Item B"});
myComboBox.addItem({label:"Item C"});
myComboBox.addItem({label:"Item D"});
myComboBox.move(10, 10);
addChild(myComboBox);
The following example creates a ComboBox component instance and sets a custom text format for both the embedded text field and drop down menu:

import fl.controls.ComboBox;
import fl.data.DataProvider;

var myTextFormat:TextFormat = new TextFormat();
myTextFormat.font = "Comic Sans MS";
myTextFormat.color = 0xFF0000;

var fontArray:Array = Font.enumerateFonts(true);
fontArray.sortOn("fontName", Array.CASEINSENSITIVE);

var dp:DataProvider = new DataProvider(fontArray);

var myComboBox:ComboBox = new ComboBox();
myComboBox.dataProvider = dp;
myComboBox.dropdown.iconField = null;
myComboBox.labelField = "fontName";
myComboBox.textField.setStyle("textFormat", myTextFormat);
myComboBox.dropdown.setRendererStyle("textFormat", myTextFormat);
myComboBox.width = 200;
myComboBox.move(10, 10);
addChild(myComboBox);
valueproperty 
value:String  [read-only]

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Gets the label of an item in an editable ComboBox component. For a ComboBox component that is not editable, this property gets the data that the item contains.



Implementation
    public function get value():String

Example
The following example uses a Label component to display the value property for an editable ComboBox:

import fl.controls.ComboBox;
import fl.controls.Label;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Select a user:";
myComboBox.addItem({firstName:"Jane", lastName:"Doe"}); 
myComboBox.addItem({firstName:"Bill", lastName:"Smith"});
myComboBox.addItem({firstName:"Tim", lastName:"Jones"});
myComboBox.labelFunction = nameLabelFunction;
myComboBox.width = 120;
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.CHANGE, changeHandler);
myComboBox.editable = true;
addChild(myComboBox);

var myLabel:Label = new Label();
myLabel.text = "";
myLabel.autoSize = TextFieldAutoSize.LEFT;
myLabel.move(myComboBox.x, myComboBox.y + myComboBox.height);
addChild(myLabel);

function changeHandler(event:Event):void {
    var cb:ComboBox = event.currentTarget as ComboBox;
    myLabel.text = "value: " + cb.value;
}

function nameLabelFunction(item:Object):String {
    var str:String;
    if (item == null) {
        str = myComboBox.value;
    } else {
        str = item.lastName + ", " + item.firstName;
    }
    return str;
}
Constructor Detail
ComboBox()Constructor
public function ComboBox()

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Creates a new ComboBox component instance.

Method Detail
addItem()method
public function addItem(item:Object):void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Appends an item to the end of the list of items.

An item should contain label and data properties; however, items that contain other properties can also be added to the list. By default, the label property of an item is used to display the label of the row; the data property is used to store the data of the row.

Parameters

item:Object — The item to be added to the data provider.

See also

addItemAt()method 
public function addItemAt(item:Object, index:uint):void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Inserts an item into the list at the specified index location. The indices of items at or after the specified index location are incremented by 1.

Parameters

item:Object — The item to be added to the list.
 
index:uint — The index at which to add the item.

See also

close()method 
public function close():void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Closes the drop-down list.

Note: Calling this method causes the close event to be dispatched. If the ComboBox is already closed, calling this method has no effect.

See also


Example

The following example creates a ComboBox component instance and toggles the drop-down menu's visibility using the open() and close() methods:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item 1"});
myComboBox.addItem({label:"Item 2"});
myComboBox.addItem({label:"Item 3"});
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.OPEN, openHandler);
myComboBox.addEventListener(Event.CLOSE, closeHandler);
addChild(myComboBox);

var isOpen:Boolean = false;

var timer:Timer = new Timer(1000);
timer.addEventListener(TimerEvent.TIMER, timerHandler);
timer.start();

function openHandler(event:Event):void {
    isOpen = true;
}

function closeHandler(event:Event):void {
    isOpen = false;
}

function timerHandler(event:TimerEvent):void {
    if (isOpen) {
        myComboBox.close();
    } else {
        myComboBox.open();
    }
}
getItemAt()method 
public function getItemAt(index:uint):Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Retrieves the item at the specified index.

Parameters

index:uint — The index of the item to be retrieved.

Returns
Object — The object at the specified index location.

Example

The following example creates a ComboBox component instance and uses a for loop and the getItemAt() method to copy items from the ComboBox into a DataGrid component:

import fl.controls.ComboBox;
import fl.controls.DataGrid;
import fl.controls.dataGridClasses.DataGridColumn;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item 1", price:0.34});
myComboBox.addItem({label:"Item 2", price:13.19});
myComboBox.addItem({label:"item 3", price:2.96});
myComboBox.addItem({label:"Item 4", price:3.49});
myComboBox.addItem({label:"Item 5", price:1.27});
myComboBox.move(10, 10);
addChild(myComboBox);

var indexCol:DataGridColumn = new DataGridColumn("index");
indexCol.headerText = "";
indexCol.sortOptions = Array.NUMERIC;

var labelCol:DataGridColumn = new DataGridColumn("label");
labelCol.sortOptions = Array.CASEINSENSITIVE;

var priceCol:DataGridColumn = new DataGridColumn("price");
priceCol.sortOptions = Array.NUMERIC;

var myDataGrid:DataGrid = new DataGrid();
myDataGrid.addColumn(indexCol);
myDataGrid.addColumn(labelCol);
myDataGrid.addColumn(priceCol);
myDataGrid.move(10, 40);
myDataGrid.rowCount = myComboBox.length;
myDataGrid.width = 180;
addChild(myDataGrid);

var i:uint;
var item:Object;
for (i = 0; i < myComboBox.length; i++) {
    item = myComboBox.getItemAt(i);
    myDataGrid.addItem({index:i, label:item.label, price:item.price});
}
getStyleDefinition()method 
public static function getStyleDefinition():Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Retrieves the default style map for the current component. The style map contains the type that is appropriate for the component, depending on the style that the component uses. For example, the disabledTextFormat style contains a value of null or a TextFormat object. You can use these styles and call setStyle() on the current component. The following code overrides the default disabledTextFormat style on the specified component:

componentInstance.setStyle("disabledTextFormat", new TextFormat());

Returns
Object — Default styles object.

See also


Example

The following example creates a style browser for several component classes:
import fl.controls.*;
import fl.containers.*;
import fl.controls.listClasses.*;
import fl.controls.dataGridClasses.*;
import fl.controls.progressBarClasses.*;
import fl.core.UIComponent;
import fl.data.DataProvider;

var dp:DataProvider = new DataProvider();
dp.addItem( { label: "BaseScrollPane",    data:BaseScrollPane } );
dp.addItem( { label: "Button",             data:Button } );
dp.addItem( { label: "CellRenderer",    data:CellRenderer } );
dp.addItem( { label: "CheckBox",         data:CheckBox } );
dp.addItem( { label: "ColorPicker",     data:ColorPicker } );
dp.addItem( { label: "ComboBox",         data:ComboBox } );
dp.addItem( { label: "DataGrid",         data:DataGrid } );
dp.addItem( { label: "HeaderRenderer",    data:HeaderRenderer } );
dp.addItem( { label: "ImageCell",        data:ImageCell } );
dp.addItem( { label: "IndeterminateBar",data:IndeterminateBar } );
dp.addItem( { label: "Label",             data:Label } );
dp.addItem( { label: "List",             data:List } );
dp.addItem( { label: "NumericStepper",     data:NumericStepper } );
dp.addItem( { label: "ProgressBar",     data:ProgressBar } );
dp.addItem( { label: "RadioButton",     data:RadioButton } );
dp.addItem( { label: "ScrollPane",         data:ScrollPane } );
dp.addItem( { label: "Slider",             data:Slider } );
dp.addItem( { label: "TextArea",         data:TextArea } );
dp.addItem( { label: "TextInput",         data:TextInput } );
dp.addItem( { label: "TileList",         data:TileList } );
dp.addItem( { label: "UILoader",         data:UILoader } );
dp.addItem( { label: "UIComponent",     data:UIComponent } );

var cb:ComboBox = new ComboBox();
cb.move(10,10);
cb.setSize(300,25);
cb.prompt = "Select a component to view its styles";
cb.rowCount = 12;
cb.dataProvider = dp;
cb.addEventListener(Event.CHANGE, showStyleDefinition);
addChild(cb);

var dg:DataGrid = new DataGrid();
dg.setSize(425,300);
dg.move(10,50);
dg.columns = [ new DataGridColumn("StyleName"), new DataGridColumn("DefaultValue") ];
addChild(dg);

function showStyleDefinition(e:Event):void {
    var componentClass:Class = e.target.selectedItem.data as Class;
    var styles:Object = componentClass["getStyleDefinition"].call(this);
    trace(styles.toString());
    var styleData:DataProvider = new DataProvider();
    for(var i:* in styles) {
        trace(i + " : " + styles[i]);
        styleData.addItem( { StyleName:i, DefaultValue:styles[i] } );
    }
    styleData.sortOn("StyleName");
    dg.dataProvider = styleData;
}
itemToLabel()method 
public function itemToLabel(item:Object):String

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Retrieves the string that the renderer displays for the given data object based on the labelField and labelFunction properties.

Note: The labelField is not used if the labelFunction property is set to a callback function.

Parameters

item:Object — The object to be rendered.

Returns
String — The string to be displayed based on the data.

See also

open()method 
public function open():void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Opens the drop-down list.

Note: Calling this method causes the open event to be dispatched. If the ComboBox component is already open, calling this method has no effect.

See also

removeAll()method 
public function removeAll():void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Removes all items from the list.

See also


Example

The following example uses a Button component instance to remove the items from a ComboBox using the removeAll() method:

import fl.controls.Button;
import fl.controls.ComboBox;
import fl.controls.TextInput;

var greenTF:TextFormat;
var redTF:TextFormat;
var myTextInput:TextInput;
var addButton:Button;
var myComboBox:ComboBox;
var removeButton:Button;

greenTF = new TextFormat();
greenTF.color = 0x006600;

redTF = new TextFormat();
redTF.color = 0xFF0000;

myTextInput = new TextInput();
myTextInput.maxChars = 20;
myTextInput.restrict = "a-zA-Z";
myTextInput.move(10, 10);
addChild(myTextInput);

addButton = new Button();
addButton.label = "(+) Add";
addButton.setStyle("textFormat", greenTF);
addButton.move(120, 10);
addButton.addEventListener(MouseEvent.CLICK, addClickHandler);
addChild(addButton);

myComboBox = new ComboBox();
myComboBox.move(10, 40);
addChild(myComboBox);

removeButton = new Button();
removeButton.label = "(-) Remove All";
removeButton.setStyle("textFormat", redTF);
removeButton.move(120, 40);
removeButton.addEventListener(MouseEvent.CLICK, removeClickHandler);
addChild(removeButton);

function addClickHandler(event:MouseEvent):void {
    if (myTextInput.length > 0) {
        trace("adding item...");
        myComboBox.addItem({label:myTextInput.text});
        myComboBox.sortItemsOn("label", Array.CASEINSENSITIVE);
        myTextInput.text = "";
    }
}

function removeClickHandler(event:MouseEvent):void {
    trace("removing all items...");
    myComboBox.removeAll();
}
removeItem()method 
public function removeItem(item:Object):Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Removes the specified item from the list.

Parameters

item:Object — The item to be removed.

Returns
Object — The item that was removed.

See also


Example

The following example demonstrates how to remove an item from a list once it is clicked:
import fl.controls.List;
import fl.events.ListEvent;

var myList:List = new List();
myList.addItem( { label: "Carrot" } );
myList.addItem( { label: "Turnip" } );
myList.addItem( { label: "Tomato" } );
myList.addItem( { label: "Blueberry" } );
myList.addEventListener(ListEvent.ITEM_CLICK,removeSelectedItem);
addChild(myList);

function removeSelectedItem(e:ListEvent):void {
    myList.removeItem(e.item);
}
removeItemAt()method 
public function removeItemAt(index:uint):void

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Removes the item at the specified index position. The index locations of items whose indices are greater than the specified index advance in the array by 1.

This is a method of the List component that is available from an instance of the ComboBox component.

Parameters

index:uint — Index of the item to be removed.


Throws
RangeError — The specified index is less than 0 or greater than or equal to the length of the data provider.

See also

replaceItemAt()method 
public function replaceItemAt(item:Object, index:uint):Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Replaces the item at the specified index location with another item. This method modifies the data provider of the List component. If the data provider is shared with other components, the data that is provided to those components is also updated.

Parameters

item:Object — The item to replace the item at the specified index location.
 
index:uint — The index position of the item to be replaced.

Returns
Object — The item that was replaced.

Example

The following example replaces the currently selected item in a ComboBox with the value from a TextInput component using the replaceItemAt() method:

import fl.controls.Button;
import fl.controls.ComboBox;
import fl.controls.TextArea;
import fl.controls.TextInput;

var myComboBox:ComboBox = new ComboBox();
myComboBox.prompt = "Select a user...";
myComboBox.addItem({label:"Person 1"});
myComboBox.addItem({label:"Person 2"});
myComboBox.addItem({label:"Person 3"});
myComboBox.addItem({label:"Person 4"});
myComboBox.width = 150;
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.CHANGE, changeHandler);
addChild(myComboBox);

var myTextInput:TextInput = new TextInput();
myTextInput.restrict = "a-zA-Z0-9";
myTextInput.maxChars = 12;
myTextInput.move(10, 40);
addChild(myTextInput)

var myButton:Button = new Button();
myButton.label = "Replace item";
myButton.addEventListener(MouseEvent.CLICK, clickHandler);
myButton.move(120, 40);
addChild(myButton);

var myTextArea:TextArea = new TextArea();
myTextArea.editable = false;
myTextArea.setSize(320, 240);
myTextArea.move(10, 70);
addChild(myTextArea);

function changeHandler(event:Event):void {
    myTextInput.text = myComboBox.selectedLabel;
}

function clickHandler(event:MouseEvent):void {
    var cIndex:int = myComboBox.selectedIndex;
    if (cIndex > -1) {
        var newItem:Object = {label:myTextInput.text};
        var oldItem:Object = myComboBox.replaceItemAt(newItem, cIndex);
        myComboBox.selectedIndex = cIndex;
        myTextArea.appendText("[index:" + cIndex + "] old:'" + oldItem.label +"', new:'" + newItem.label + "'\n");
        myTextArea.verticalScrollPosition = myTextArea.maxVerticalScrollPosition;
    }
}
sortItems()method 
public function sortItems(... sortArgs):*

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Sorts the elements of the current data provider. This method performs a sort based on the Unicode values of the elements. ASCII is a subset of Unicode.

Parameters

... sortArgs — The arguments against which to sort.

Returns
* — The return value depends on whether any parameters are passed to this method. For more information, see the Array.sort() method. Note that this method returns 0 when the sortArgs parameter is set to Array.UNIQUESORT.

See also


Example

The following example sorts the items in a ComboBox instance according to each item's label text. The items to be sorted are passed to a custom sorting function, upperCaseSort(), which compares two item's label properties and returns a Boolean value depending on the order that the item should appear:
import fl.controls.ComboBox;

var cb:ComboBox = new ComboBox();
cb.addItem( { label: "Mercury" } );
cb.addItem( { label: "Venus" } );
cb.addItem( { label: "Earth" } );
cb.addItem( { label: "planet" } );
cb.sortItems(upperCaseSort);
addChild(cb);

function upperCaseSort(a:Object, b:Object):Boolean {
    return a.label.toUpperCase() > b.label.toUpperCase();
}
sortItemsOn()method 
public function sortItemsOn(field:String, options:Object = null):*

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Sorts the elements of the current data provider by one or more of its fields.

Parameters

field:String — The field on which to sort.
 
options:Object (default = null) — Sort arguments that are used to override the default sort behavior. Separate two or more arguments with the bitwise OR (|) operator.

Returns
* — The return value depends on whether any parameters are passed to this method. For more information, see the Array.sortOn() method. Note that this method returns 0 when the sortOption parameter is set to Array.UNIQUESORT.

See also


Example

The following examples are based on a ComboBox instance named cb that contains four elements labeled "Apples", "Bananas", "cherries", and "Grapes":
import fl.controls.ComboBox;

var cb:ComboBox = new ComboBox();
addChild(cb);

// First, populate the ComboBox with the elements.
cb.addItem( { label: "Bananas" } );
cb.addItem( { label: "Apples" } );
cb.addItem( { label: "cherries" } );
cb.addItem( { label: "Grapes" } );

// The following statement sorts using the order parameter set to "ASC", 
// and results in a sort that places "cherries" at the bottom of the list 
// because the sort is case-sensitive.
cb.sortItemsOn("label", "ASC"); 
// resulting order: Apples, Bananas, Grapes, cherries

// The following statement sorts using the order parameter set to "DESC", 
// and results in a sort that places "cherries" at the top of the list 
// because the sort is case-sensitive.
cb.sortItemsOn("label", "DESC");
// resulting order: cherries, Grapes, Bananas, Apples

// The following statement sorts using the optionsFlag parameter set to 
// Array.CASEINSENSITIVE. Note that an ascending sort is the default setting.
cb.sortItemsOn("label", Array.CASEINSENSITIVE);
// resulting order: Apples, Bananas, cherries, Grapes

// The following statement sorts using the optionsFlag parameter set to 
// Array.CASEINSENSITIVE | Array.DESCENDING.
cb.sortItemsOn("label", Array.CASEINSENSITIVE | Array.DESCENDING);
// resulting order: Grapes, cherries, Bananas, Apples

The following example creates a ComboBox and sorts the items using the sortItemsOn() method:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({firstName:"Jane", lastName:"Doe"}); 
myComboBox.addItem({firstName:"Bill", lastName:"Smith"});
myComboBox.addItem({firstName:"Tim", lastName:"Jones"});
myComboBox.sortItemsOn("lastName", Array.CASEINSENSITIVE);
myComboBox.labelFunction = nameLabelFunction;
myComboBox.move(10, 10);
addChild(myComboBox);

function nameLabelFunction(item:Object):String {
    return item.lastName + ", " + item.firstName;
}
Event Detail
change Event
Event Object Type: flash.events.Event
property Event.type = flash.events.Event.CHANGE

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the user changes the selection in the ComboBox component or, if the ComboBox component is editable, each time the user enters a keystroke in the text field.

The Event.CHANGE constant defines the value of the type property of a change event object.

This event has the following properties:

PropertyValue
bubblestrue
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the Event object with an event listener.
targetThe object that has had its value modified. The target is not always the object in the display list that registered the event listener. Use the currentTarget property to access the object in the display list that is currently processing the event.
close Event  
Event Object Type: flash.events.Event
property Event.type = flash.events.Event.CLOSE

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the drop-down list is dismissed for any reason.

The Event.CLOSE constant defines the value of the type property of a close event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the Event object with an event listener.
targetThe object whose connection has been closed.

Example

The following example creates a ComboBox component instance and toggles the drop-down menu's visibility using the open() and close() methods:

import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item 1"});
myComboBox.addItem({label:"Item 2"});
myComboBox.addItem({label:"Item 3"});
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.OPEN, openHandler);
myComboBox.addEventListener(Event.CLOSE, closeHandler);
addChild(myComboBox);

var isOpen:Boolean = false;

var timer:Timer = new Timer(1000);
timer.addEventListener(TimerEvent.TIMER, timerHandler);
timer.start();

function openHandler(event:Event):void {
    isOpen = true;
}

function closeHandler(event:Event):void {
    isOpen = false;
}

function timerHandler(event:TimerEvent):void {
    if (isOpen) {
        myComboBox.close();
    } else {
        myComboBox.open();
    }
}

See also

enter Event  
Event Object Type: fl.events.ComponentEvent
property ComponentEvent.type = fl.events.ComponentEvent.ENTER

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched if the editable property is set to true and the user presses the Enter key while typing in the editable text field.

Defines the value of the type property of an enter event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the event object with an event listener.
targetThe object that dispatched the event. The target is not always the object listening for the event. Use the currentTarget property to access the object that is listening for the event.
itemRollOut Event  
Event Object Type: fl.events.ListEvent
property ListEvent.type = fl.events.ListEvent.ITEM_ROLL_OUT

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the user rolls the pointer off of an item in the component.

Defines the value of the type property of an itemRollOut event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
columnIndexThe zero-based index of the column that contains the renderer.
currentTargetThe object that is actively processing the event object with an event listener.
indexThe zero-based index in the DataProvider that contains the renderer.
itemA reference to the data that belongs to the renderer.
rowIndexThe zero-based index of the row that contains the renderer.
targetThe object that dispatched the event. The target is not always the object listening for the event. Use the currentTarget property to access the object that is listening for the event.

See also

itemRollOver Event  
Event Object Type: fl.events.ListEvent
property ListEvent.type = fl.events.ListEvent.ITEM_ROLL_OVER

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the user rolls the pointer over an item in the component.

Defines the value of the type property of an itemRollOver event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
columnIndexThe zero-based index of the column that contains the renderer.
currentTargetThe object that is actively processing the event object with an event listener.
indexThe zero-based index in the DataProvider that contains the renderer.
itemA reference to the data that belongs to the renderer.
rowIndexThe zero-based index of the row that contains the renderer.
targetThe object that dispatched the event. The target is not always the object listening for the event. Use the currentTarget property to access the object that is listening for the event.

Example

The following example creates a ComboBox component that opens when the user rolls over the component instance:

import fl.controls.ComboBox;
import fl.controls.TextArea;
import fl.events.ListEvent;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item 1"});
myComboBox.addItem({label:"Item 2"});
myComboBox.addItem({label:"Item 3"});
myComboBox.move(10, 10);
myComboBox.addEventListener(Event.OPEN, openHandler);
myComboBox.addEventListener(Event.CLOSE, closeHandler);
myComboBox.addEventListener(ListEvent.ITEM_ROLL_OVER, itemRollOverHandler);
myComboBox.addEventListener(ListEvent.ITEM_ROLL_OUT, itemRollOutHandler);
myComboBox.addEventListener(MouseEvent.ROLL_OVER, rollOverHandler);
myComboBox.addEventListener(MouseEvent.ROLL_OUT, rollOutHandler);
myComboBox.dropdown.addEventListener(MouseEvent.ROLL_OVER, dropdownRollOverHandler)
myComboBox.dropdown.addEventListener(MouseEvent.ROLL_OUT, dropdownRollOutHandler);
addChild(myComboBox);

var myTextArea:TextArea = new TextArea();
myTextArea.editable = false;
myTextArea.setSize(320, 240);
myTextArea.move(120, 10);
addChild(myTextArea);

function openHandler(event:Event):void {
    logEvent("ComboBox open");
}

function closeHandler(event:Event):void {
    logEvent("ComboBox close");
}

function itemRollOverHandler(event:ListEvent):void {
    var rowIdx:uint = event.rowIndex as uint;
    logEvent("ComboBox itemRollOver: " + "`" + myComboBox.getItemAt(rowIdx).label + "`");
}

function itemRollOutHandler(event:ListEvent):void {
    var rowIdx:uint = event.rowIndex as uint;
    logEvent("ComboBox itemRollOut: " + "`" + myComboBox.getItemAt(rowIdx).label + "`");
}

function rollOverHandler(event:MouseEvent):void {
    logEvent("ComboBox rollOver");
    myComboBox.open();
}

function rollOutHandler(event:MouseEvent):void {
    logEvent("ComboBox rollOut");
    myComboBox.close();
}

function dropdownRollOverHandler(event:MouseEvent):void {
    logEvent("ComboBox.dropdown rollOver");
    // reopen ComboBox after it gets closed by the ComboBox rollOut event
    myComboBox.open();
}

function dropdownRollOutHandler(event:MouseEvent):void {
    logEvent("ComboBox.dropdown rollOut");
    myComboBox.close();
}

function logEvent(text:String):void {
    myTextArea.appendText(text + "\n");
    myTextArea.verticalScrollPosition = myTextArea.maxVerticalScrollPosition;
}

See also

open Event  
Event Object Type: flash.events.Event
property Event.type = flash.events.Event.OPEN

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the user clicks the drop-down button to display the drop-down list. Also dispatched when the user clicks the text field, if the ComboBox component is not editable.

The Event.OPEN constant defines the value of the type property of an open event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the Event object with an event listener.
targetThe network object that has opened a connection.

Example

The following example creates a Button component that opens a ComboBox component's drop-down list using the open() method. The dropdown menu closes after 1 second unless the user mouses over the ComboBox or its dropdown menu:

import fl.controls.Button;
import fl.controls.ComboBox;

var myComboBox:ComboBox = new ComboBox();
myComboBox.addItem({label:"Item 1"});
myComboBox.addItem({label:"Item 2"});
myComboBox.addItem({label:"Item 3"});
myComboBox.move(10, 10);
myComboBox.addEventListener(MouseEvent.ROLL_OVER, rollOverHandler);
myComboBox.dropdown.addEventListener(MouseEvent.ROLL_OVER, rollOverHandler);
myComboBox.dropdown.addEventListener(MouseEvent.ROLL_OUT, rollOutHandler);
addChild(myComboBox);

var myButton:Button = new Button();
myButton.emphasized = true;
myButton.label = "open ComboBox";
myButton.move(120, 10);
myButton.addEventListener(MouseEvent.CLICK, clickHandler);
addChild(myButton);

var closeTimer:Timer = new Timer(1000, 1);
closeTimer.addEventListener(TimerEvent.TIMER_COMPLETE, timerCompleteHandler);

function clickHandler(event:MouseEvent):void {
    myComboBox.open();
    closeTimer.reset();
    closeTimer.start();
}

function timerCompleteHandler(event:TimerEvent):void {
    myComboBox.close();
}

function rollOverHandler(event:MouseEvent):void {
    closeTimer.stop();
}

function rollOutHandler(event:MouseEvent):void {
    myComboBox.close();
}

See also

scroll Event  
Event Object Type: fl.events.ScrollEvent
property ScrollEvent.type = fl.events.ScrollEvent.SCROLL

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0.28.0, AIR 1.0

Dispatched when the user scrolls the drop-down list of the ComboBox component.

Defines the value of the type property of a scroll event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the event object with an event listener.
delta1; a value that indicates how much scrolling was done.
directionvertical; the direction of the ScrollBar.
position0; the position of the Scrollbar thumb after it was moved.
targetThe object that dispatched the event. The target is not always the object listening for the event. Use the currentTarget property to access the object that is listening for the event.
Examples How to use this example
ComboBoxExample.as

This example demonstrates how to listen to the events of a ComboBox
  1. Drag a ComboBox onto the stage and name it cb.
  2. Save this code as ComboBoxExample.as in the same directory as your FLA.
  3. Set the DocumentClass in the FLA to ComboBoxExample.
package 
{
    import flash.display.Sprite
    import flash.text.TextField;
    import flash.events.Event;
    import fl.controls.ComboBox;
    
    public class ComboBoxExample extends Sprite
    {
        private var tf:TextField;
        
        public function ComboBoxExample() {
            setupComboBox();
            setupTextField();
        }
        private function setupTextField():void {
            tf = new TextField();
            tf.x = 180;
            tf.y = 15;
            tf.autoSize = "left";
            addChild(tf);
        }
        private function setupComboBox():void {
            cb.setSize(150,22);
            cb.addItem( { label: "MasterCard", data:1 } );
            cb.addItem( { label: "Visa", data:2 } );
            cb.addItem( { label: "American Express", data:3 } );
            cb.addEventListener(Event.CHANGE, cardSelected);            
        }
        private function cardSelected(e:Event):void {
            tf.text = "You have selected: "
            tf.appendText(cb.selectedItem.label);
        }
    }
}




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