Cast target to a UIComponent before calling the setStyle() method

           

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
    import mx.core.UIComponent;
    private function myEventHandler(e:Event):void {
        UIComponent(e.currentTarget).setStyle("color", "red");
    }
  </mx:Script>
    <mx:Button id="b1" label="Click Me" click="myEventHandler(event)" />
</mx:Application>

1.	Use setStyle() method, set it inline, or use Cascading Style Sheets (CSS)
2.	Using setStyle to programmatically manipulate a style property
3.	Use setStyle to change font size
4.	Use setStyle to change font style
5.	Use setStyle() method
6.	Using the setStyle() method to apply graphical skins
7.	Using setStyle() method with a trigger
8.	Use the setStyle() method to apply the custom class to the item renderer.
9.	Use getStyle() with effects defined in MXML
10.	Use getStyle() with behaviors defined in MXML
11.	Set a style property inline, and then reads that property with the getStyle() method

Cast target to a UIComponent before calling the setStyle() method : Style Get Set « Style « Flex

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