Clearing selections
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<!-- charts/ClearItemSelection.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:Script>
import flash.events.KeyboardEvent;
import mx.core.FlexGlobals;
import mx.collections.ArrayCollection;
[Bindable]
public var expenses:ArrayCollection = new ArrayCollection([
{Month:"Jan", Profit:20, Expenses:15, Amount:145},
{Month:"Feb", Profit:1, Expenses:2, Amount:60},
{Month:"Mar", Profit:15, Expenses:5, Amount:3}
]);
private function initApp():void {
FlexGlobals.topLevelApplication.addEventListener(KeyboardEvent.KEY_UP, keyHandler);
}
// Clears all chart items selected when the user presses the ESC key.
private function keyHandler(event:KeyboardEvent):void {
var curKeyCode:int = event.keyCode;
if (curKeyCode == 27) { // 27 is the keycode value for ESC
myChart.clearSelection();
}
}
</fx:Script>
<s:layout>
<s:VerticalLayout />
</s:layout>
<s:Panel height="100%" width="100%">
<s:layout>
<s:VerticalLayout />
</s:layout>
<mx:PlotChart id="myChart" height="207" width="350"
showDataTips="true" dataProvider="{expenses}"
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="{expenses}" width="200" />
<s:Label text="Press ESC to clear selection." />
</s:Panel>
</s:Application>
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