Package | mx.charts |
Class | public class CategoryAxis |
Inheritance | CategoryAxis ![]() ![]() ![]() |
Implements | IAxis |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
You are not required to explicitly set the dataProvider
property
on a CategoryAxis. A CategoryAxis used in a chart inherits its
dataProvider
property from the containing chart.
While you can use the same data provider to provide data to the chart and categories to the CategoryAxis, a CategoryAxis can optimize rendering if its data provider is relatively static. If possible, ensure that the categories are relatively static and that changing data is stored in separate data providers.
The dataProvider
property can accept
either an array of strings or an array of records (Objects)
with a property that specifies the category name.
If you specify a categoryField
property,
the CategoryAxis assumes that the data provider is an array of Objects.
If the value of the categoryField
property is null
,
the CategoryAxis assumes that the data provider is an array of Strings.
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The <mx:CategoryAxis>
tag inherits all the properties
of its parent classes and adds the following properties:
<mx:CategoryAxis Properties categoryField="null" dataFunction="No default" dataProvider="No default" labelFunction="No default" padding="Default depends on chart type" ticksBetweenLabels="true" />
More examples
Property | Defined By | ||
---|---|---|---|
![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object |
Method | Defined By | ||
---|---|---|---|
![]() | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
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Dispatches an event into the event flow. | EventDispatcher | |
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Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
![]() |
Indicates whether an object has a specified property defined. | Object | |
![]() |
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
![]() |
Indicates whether the specified property exists and is enumerable. | Object | |
![]() |
Removes a listener from the EventDispatcher object. | EventDispatcher | |
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Sets the availability of a dynamic property for loop operations. | Object | |
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
![]() |
Returns the string representation of the specified object. | Object | |
![]() |
Returns the primitive value of the specified object. | Object | |
![]() |
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
<?xml version="1.0"?> <!-- Simple example to demonstrate the HLOCChart control. --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"> <fx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] private var stockDataAC:ArrayCollection = new ArrayCollection( [ { Date: "25-Jul", Open: 40.55, High: 40.75, Low: 40.24, Close:40.31}, { Date: "26-Jul", Open: 40.15, High: 40.78, Low: 39.97, Close:40.34}, { Date: "27-Jul", Open: 40.38, High: 40.66, Low: 40, Close:40.63}, { Date: "28-Jul", Open: 40.49, High: 40.99, Low: 40.3, Close:40.98}, { Date: "29-Jul", Open: 40.13, High: 40.4, Low: 39.65, Close:39.95}, { Date: "1-Aug", Open: 39.00, High: 39.50, Low: 38.7, Close:38.6}, { Date: "2-Aug", Open: 38.68, High: 39.34, Low: 37.75, Close:38.84}, { Date: "3-Aug", Open: 38.76, High: 38.76, Low: 38.03, Close:38.12}, { Date: "4-Aug", Open: 37.98, High: 37.98, Low: 36.56, Close:36.69}, { Date: "5-Aug", Open: 36.61, High: 37, Low: 36.48, Close:36.86} ]); ]]> </fx:Script> <fx:Declarations> <!-- Define custom Stroke for the wick and ticks. --> <mx:SolidColorStroke id="s1" color="0x000000" weight="5" joints="bevel" caps="square"/> </fx:Declarations> <mx:Panel title="HLOCChart Control Example" height="100%" width="100%"> <mx:HLOCChart id="hlocchart" height="100%" width="100%" paddingRight="5" paddingLeft="5" showDataTips="true" dataProvider="{stockDataAC}"> <mx:verticalAxis> <mx:LinearAxis id="vaxis" baseAtZero="false" title="Price"/> </mx:verticalAxis> <mx:horizontalAxis> <mx:CategoryAxis id="haxis" categoryField="Date" title="Date"/> </mx:horizontalAxis> <mx:horizontalAxisRenderers> <mx:AxisRenderer axis="{haxis}" canDropLabels="true"/> </mx:horizontalAxisRenderers> <mx:series> <mx:HLOCSeries openField="Open" highField="High" lowField="Low" closeField="Close" stroke="{s1}" openTickStroke="{s1}" closeTickStroke="{s1}" openTickLength="7" closeTickLength="7" /> </mx:series> </mx:HLOCChart> </mx:Panel> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00