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BarChart control in Flex4
Posted on: June 4, 2010 at 12:00 AM
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The BarChart Control is a MX Component. There is no Spark component.

BarChart control in Flex4:

The BarChart Control is a MX Component. There is no Spark component.
The BarChart Control represents the data in horizontal bars whose length determined the value of the data. You can provide the data to the chart control  by using data provider property. You will use <mx:horizontalAxis> or <mx:verticalAxis> and <mx:Series> in it. You will use xField, yField and displayName property for series. You can use more than one series in it. It's essentially like a ColumnChart rotate 90 degree clockwise. The tag of BarChart Control is <mx:BarChart>.

Example:

<?xml version="1.0" encoding="utf-8"?>

<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"

minWidth="955" minHeight="600">

<fx:Declarations>

<s:SolidColor id="s1" color="#990000" alpha=".5"/>

<s:SolidColor id="s2" color="#808080" alpha=".5"/>

<s:SolidColor id="s3" color="#cc00cc" alpha=".5"/>

<s:SolidColorStroke id="scs1" color="#990000" weight="2"/>

<s:SolidColorStroke id="scs2" color="#808080" weight="2"/>

<s:SolidColorStroke id="scs3" color="#cc00cc" weight="2"/>

</fx:Declarations>

<fx:Script>

<![CDATA[

import mx.collections.ArrayCollection;

[Bindable]

public var student:ArrayCollection = new ArrayCollection([

{Stream:"Management", Girls:1000, Boys:1400, TotalStudent:2400},

{Stream:"Computer Science", Girls:800, Boys:1200, TotalStudent:2000},

{Stream:"Mechanical", Girls:200, Boys:1500, TotalStudent:1700},

{Stream:"Electical", Girls:800, Boys:850, TotalStudent:1650},

{Stream:"Electronics", Girls:500, Boys:1000, TotalStudent:1500},

{Stream:"Civil", Girls:300, Boys:900, TotalStudent:1200}

]);

]]>

</fx:Script>

<s:Panel title="BarChart control Example" width="617">

<s:layout>

<s:HorizontalLayout/>

</s:layout>

<mx:BarChart id="barchart1"

showDataTips="true"

paddingBottom="10"

paddingLeft="10"

paddingRight="10"

paddingTop="10"

dataProvider="{student}"

width="515">

<mx:verticalAxis>

<mx:CategoryAxis categoryField="Stream"

dataProvider="{student}"/>

</mx:verticalAxis>

<mx:series>

<mx:BarSeries id="as1"

xField="Girls"

yField="Stream"

displayName="Girls"

fill="{s1}"

stroke="{scs1}"/>

<mx:BarSeries id="as2"

xField="Boys"

yField="Stream"

displayName="Boys"

fill="{s2}"

stroke="{scs2}"/>

<mx:BarSeries id="as3"

xField="TotalStudent"

yField="Stream"

displayName="TotalStudent"

fill="{s3}"

stroke="{scs3}"/>

</mx:series>

</mx:BarChart>

<mx:Legend dataProvider="{barchart1}"/>

</s:Panel>

</s:Application>

Output:

Running Application:

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Posted on: June 4, 2010

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