Mega Code Archive
Set a threshold value in the TextInput control
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Code from Flex 4 Documentation "Using Adobe Flex 4".
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<!-- charts/ConditionallySelectChartItems.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
import mx.collections.ArrayCollection;
[Bindable]
private var expensesAC:ArrayCollection = new ArrayCollection( [
{ Month: "Jan", Profit: 2000, Expenses: 1500, Amount: 450 },
{ Month: "Feb", Profit: 1000, Expenses: 200, Amount: 600 },
{ Month: "Mar", Profit: 1500, Expenses: 500, Amount: 300 },
{ Month: "Apr", Profit: 1800, Expenses: 1200, Amount: 900 },
{ Month: "May", Profit: 2400, Expenses: 575, Amount: 500 } ]);
private function selectItems(event:Event):void {
// Create an array of all the chart's series.
var allSeries:Array = myChart.series;
// Iterate over each series.
for (var i:int=0; i<allSeries.length; i++) {
var selectedData:Array = [];
// Iterate over each item in the series.
for (var j:int=0; j<expensesAC.length; j++) {
if (expensesAC.getItemAt(j).Profit >= Number(threshold.text)) {
selectedData.push(j);
}
}
// Use the series' selectedIndices property to select all the
// chart items that met the criteria.
allSeries[i].selectedIndices = selectedData;
}
}
</mx:Script>
<mx:Panel height="100%" width="100%">
<mx:PlotChart id="myChart" height="207" width="350" showDataTips="true"
dataProvider="{expensesAC}" selectionMode="multiple">
<mx:series>
<mx:PlotSeries id="series1" xField="Expenses" yField="Profit"
displayName="Expenses/Profit" selectable="true" />
<mx:PlotSeries id="series2" xField="Amount" yField="Expenses"
displayName="Amount/Expenses" selectable="true" />
<mx:PlotSeries id="series3" xField="Profit" yField="Amount"
displayName="Profit/Amount" selectable="true" />
</mx:series>
</mx:PlotChart>
<mx:Legend dataProvider="{myChart}" width="200" />
<mx:TextInput id="threshold" text="1000" />
<mx:Button label="Select Items" click="selectItems(event)" />
</mx:Panel>
</mx:Application>
]]>