Adobe® Flex® 4 Language Reference
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mx.charts 
ChartItem 
Packagemx.charts
Classpublic class ChartItem
InheritanceChartItem Inheritance EventDispatcher Inheritance Object
Subclasses AreaSeriesItem, BarSeriesItem, BubbleSeriesItem, ColumnSeriesItem, HLOCSeriesItem, LineSeriesItem, PieSeriesItem, PlotSeriesItem

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

A ChartItem represents a single item in a ChartSeries. In most standard series, there is one ChartItem created for each item in the series' dataProvider collection. ChartItems are passed to the instances of a series' itemRenderer for rendering. Most Series types extend ChartItem to contain additional information specific to the chart type.

See also

Skinning ChartItem objects
Selecting chart items

Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
  currentState : String
Defines the appearance of the ChartItem.
ChartItem
  element : IChartElement
The series or element that owns the ChartItem.
ChartItem
  index : int
The index of the data from the series' data provider that the ChartItem represents.
ChartItem
  item : Object
The item from the series' data provider that the ChartItem represents.
ChartItem
  itemRenderer : IFlexDisplayObject
The instance of the chart's itemRenderer that represents this ChartItem.
ChartItem
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined By
  
ChartItem(element:IChartElement = null, item:Object = null, index:uint = 0)
Constructor.
ChartItem
 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
  
clone():ChartItem
Returns a copy of this ChartItem.
ChartItem
 Inherited
dispatchEvent(event:Event):Boolean
Dispatches an event into the event flow.
EventDispatcher
 Inherited
hasEventListener(type:String):Boolean
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
hasOwnProperty(name:String):Boolean
Indicates whether an object has a specified property defined.
Object
 Inherited
isPrototypeOf(theClass:Object):Boolean
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
propertyIsEnumerable(name:String):Boolean
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
toLocaleString():String
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
toString():String
Returns the string representation of the specified object.
Object
 Inherited
valueOf():Object
Returns the primitive value of the specified object.
Object
 Inherited
willTrigger(type:String):Boolean
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Events
Click for more information on events
 Event Summary Defined By
 Inherited
activate
[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
 Inherited
deactivate
[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
Public Constants
 ConstantDefined By
  DISABLED : String = "disabled"
[static] Value that indicates the ChartItem appears disabled and cannot be selected.
ChartItem
  FOCUSED : String = "focused"
[static] Value that indicates the ChartItem has focus but does not appear to be selected.
ChartItem
  FOCUSEDSELECTED : String = "focusedSelected"
[static] Value that indicates the ChartItem appears to have focus and appears to be selected.
ChartItem
  NONE : String = "none"
[static] Value that indicates the ChartItem does not appear to be selected, does not have focus, and is not being rolled over.
ChartItem
  ROLLOVER : String = "rollOver"
[static] Value that indicates the ChartItem appears as if the mouse was over it.
ChartItem
  SELECTED : String = "selected"
[static] Value that indicates the ChartItem appears selected but does not have focus.
ChartItem
Property Detail

currentState

property
currentState:String

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Defines the appearance of the ChartItem. The currentState property can be set to none, rollOver, selected, disabled, focusSelected, and focused.



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

element

property 
public var element:IChartElement

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The series or element that owns the ChartItem.

index

property 
public var index:int

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The index of the data from the series' data provider that the ChartItem represents.

item

property 
public var item:Object

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The item from the series' data provider that the ChartItem represents.

itemRenderer

property 
public var itemRenderer:IFlexDisplayObject

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The instance of the chart's itemRenderer that represents this ChartItem.

Constructor Detail

ChartItem

()Constructor
public function ChartItem(element:IChartElement = null, item:Object = null, index:uint = 0)

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Constructor.

Parameters
element:IChartElement (default = null) — The series or element to which the ChartItem belongs.
 
item:Object (default = null) — The item from the series' data provider that the ChartItem represents.
 
index:uint (default = 0) — The index of the data from the series' data provider that the ChartItem represents.
Method Detail

clone

()method
public function clone():ChartItem

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Returns a copy of this ChartItem.

Returns
ChartItem — A copy of this ChartItem.
Constant Detail

DISABLED

Constant
public static const DISABLED:String = "disabled"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem appears disabled and cannot be selected.

FOCUSED

Constant 
public static const FOCUSED:String = "focused"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem has focus but does not appear to be selected.

FOCUSEDSELECTED

Constant 
public static const FOCUSEDSELECTED:String = "focusedSelected"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem appears to have focus and appears to be selected.

NONE

Constant 
public static const NONE:String = "none"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem does not appear to be selected, does not have focus, and is not being rolled over.

ROLLOVER

Constant 
public static const ROLLOVER:String = "rollOver"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem appears as if the mouse was over it.

SELECTED

Constant 
public static const SELECTED:String = "selected"

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Value that indicates the ChartItem appears selected but does not have focus.




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Thu May 20 2010, 02:19 AM -07:00