Flex Pie chart; Flex how to use Pie charts; Flex sample testcase counting pie chart;

This example shows how to create a Pie chart that counts test cases (it can be anything else, of course). Source code is available here.

Pie chart is bound to an ArrayCollection (don’t forget to insert [Bindable] property – without it the Pie chart won’t work of course). The showDataTips="true" property displays nice percentage information in Flash when you hover your mouse over it. resultHandlerStatCorrectTCs and resultHandlerStatFailedTCs are async functions that gather data for the Pie chart.

 

<mx:PieChart x="50" y="90" id="piechart1" dataProvider="{tcPercResults}" showDataTips="true" width="300" height="300">
    <mx:series>
        <mx:PieSeries displayName="TestCases" field="Amount" nameField="Expense" explodeRadius=".12"/>
    </mx:series>
</mx:PieChart>
<mx:Legend dataProvider="{piechart1}" x="0" y="90"/>

 

//Statistics
[Bindable]
public var tcPercResults:ArrayCollection = new ArrayCollection([
    {Expense:"Failed", Amount:2000},
    {Expense:"Success", Amount:1000},
]);
   
   
   
protected function statCanvas_creationCompleteHandler(event:FlexEvent):void
{
    //get correct TCs
    var resultObjCorrectTCs:AsyncToken;
    var responderCorrectTCs:AsyncResponder = new AsyncResponder( resultHandlerStatCorrectTCs, faultHandlerForAsyncCall );
    resultObjCorrectTCs = testService.getCorrectTCCount();
    resultObjCorrectTCs.addResponder( responderCorrectTCs );
   
   
    //get failed TCs
    var resultObjFailedTCs:AsyncToken;
    var responderFailedTCs:AsyncResponder = new AsyncResponder( resultHandlerStatFailedTCs, faultHandlerForAsyncCall );
    resultObjFailedTCs = testService.getFailedTCCount();
    resultObjFailedTCs.addResponder( responderFailedTCs );
   
}
   
   
   
    public function resultHandlerStatCorrectTCs( event:ResultEvent, token:Object=null ):void
{
    //Alert.show( "RESULT: "+ event.result as String );
    //var rpcRes:int = event.result as int;
    var rpcRes:int = int(event.result);
    this.statCorrectTCs = rpcRes;
   
    //set Correct TC on a graph
    var resultCorr:Object = tcPercResults.getItemAt(1);
    resultCorr["Amount"] = this.statCorrectTCs;
    tcPercResults.setItemAt(resultCorr,1);
}

public function resultHandlerStatFailedTCs( event:ResultEvent, token:Object=null ):void
{
    //Alert.show( "RESULT: "+ event.result as String );
    //var rpcRes:int = event.result as int;
    var rpcRes:int = int(event.result);
    this.statFailedTCs = rpcRes;
   
    //set Failed TC on a graph
    var result:Object = tcPercResults.getItemAt(0);
    result["Amount"] = this.statFailedTCs;
    tcPercResults.setItemAt(result,0);
}