extract the data from the HTML page by using regular expressions. : Line Chart « Chart « Flex

1. Flex
2. Chart
3. Line Chart

extract the data from the HTML page by using regular expressions.

          

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    <!-- charts/HTMLDataProvider.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
    creationComplete="initApp()" height="600">
    <fx:Declarations>
        <mx:HTTPService id="serviceInput" resultFormat="text"
            url="http://aspexamples.adobe.com/chart_examples/testDataPage.html" />
    </fx:Declarations>
    <fx:Script> 
        import mx.events.FlexEvent; 
        import mx.rpc.events.ResultEvent; 
        import mx.rpc.events.FaultEvent; 
        [Bindable] 
        public var chartData:XMLList; 
        private function initApp():void { 
            serviceInput.addEventListener(ResultEvent.RESULT, resultHandler); 
            serviceInput.addEventListener(FaultEvent.FAULT, faultHandler); 
            serviceInput.send(); 
        } 
        public function resultHandler(evt:Event):void { 
            // Extract the XML data from the HTML page. 
            var htmlBlob:String = serviceInput.lastResult.toString(); 
            htmlBlob = htmlBlob.slice( htmlBlob.indexOf("<!-- data starts here -->", 0) +25, htmlBlob.length ); 
            htmlBlob = htmlBlob.slice( 0, htmlBlob.indexOf("<!-- data ends here -->", 0) ); 
            // Create an XMLList from the extracted XML data. 
            chartData = new XMLList(htmlBlob); 
        } 
        public function faultHandler(evt:Event):void { 
            trace(evt.toString()); 
        } 
      </fx:Script>
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <s:Panel title="Line chart with data extracted from HTML page">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <mx:LineChart id="chart" dataProvider="{chartData}"
            showDataTips="true">
            <mx:series>
                <mx:LineSeries id="series1" yField="misc" xField="month" />
            </mx:series>
            <mx:horizontalAxis>
                <mx:CategoryAxis categoryField="month" />
            </mx:horizontalAxis>
        </mx:LineChart>
    </s:Panel>
</s:Application>

   
    
    
    
    
    
    
    
    
    
  

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