Flex柱状图

import flash.external.*;

import mx.charts.*;

import mx.charts.HitData;

import mx.charts.events.ChartEvent;

import mx.charts.events.ChartItemEvent;

import mx.charts.series.*;

import mx.charts.series.items.*;

import mx.charts.series.items.PieSeriesItem;

import mx.collections.ArrayCollection;

import mx.controls.*;

import mx.effects.easing.*;

import mx.graphics.SolidColor;

import mx.rpc.events.ResultEvent;

[Bindable]

private var chartDataSouse:ArrayCollection=new ArrayCollection();

private var columnChart:ColumnChart=new ColumnChart();

private var columnSeries:ColumnSeries=new ColumnSeries();

//引入json包

import com.adobe.serialization.json.JSON; 

private function barchart_resultHandler(event:ResultEvent):void{

var response:String = getbarchart.lastResult.toString();

var container:Object = (JSON.decode(response) as Object);

var chartDataSouse:ArrayCollection = new ArrayCollection(container.chartData);

//Alert.show("ok");

columnChart.dataProvider=chartDataSouse;

columnChart.percentWidth=100;

columnChart.percentHeight=90;

var colHAxis:CategoryAxis=new CategoryAxis()

colHAxis.categoryField = "courseName" ;

colHAxis.dataProvider =  chartDataSouse;

columnChart.horizontalAxis = colHAxis;            

var myColSereis:Array=new Array();

columnSeries.dataProvider=chartDataSouse;

var columnSeries2:ColumnSeries=new ColumnSeries();

columnSeries2.yField="courseSelected";

columnSeries2.xField="courseName";   

columnSeries2.displayName="课程名";       

myColSereis.push(columnSeries2);

columnChart.series=myColSereis;

chartPanel.addChild(columnChart);

columnChart.showDataTips=true;

}

private function hideBarChart():void{

chartPanel.removeChild(columnChart);

}

//点击柱状图按钮

private function barButtonClick():void{

hidePieChart();

pieButton.enabled = true;

getbarchart.send();

}