----- Original Message ----- From: "fred44455" <[email protected]> To: <[email protected]> Sent: Monday, March 16, 2009 3:01 AM Subject: [flexcoders] Simple actionscript that I cannot understand! Please help. Thanks
> > > <?xml version="1.0"?> > Can somebody explain into details what that code do?(line by line). I know > that it is changing the font size but I cannot understand the :"s" > and the "normal"? I understand the overal code but not everything. Thanks > again for your time. Fred. The buttons in the application are called myButton1 and myButton2. To change the style of a button changeLabel() is called with the button number supplied as a string s. Inside changeLabel s is changed to be the actual name of the button - e.g. "myButton"+ "1" becomes "myButton1". String s is the name of the button whose style we need to work with. this[s] refers to the actual button. "this" is the current object instance and in this context it is the application container. the [s] refers to an attribute of that object named "s" and returns a reference to the attribute. In this case this[s] returns a reference to the button whose name is contained in the string s. Paul > <!-- usingas/FlexComponents.mxml --> > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";> > <mx:Script><![CDATA[ > private var newFontStyle:String; > private var newFontSize:int; > > public function changeLabel(s:String):void { > s = "myButton" + s; > > if (this[s].getStyle("fontStyle")=="normal") { > newFontStyle = "italic"; > newFontSize = 18; > } else { > newFontStyle = "normal"; > newFontSize = 10; > } > > this[s].setStyle("fontStyle",newFontStyle); > this[s].setStyle("fontSize",newFontSize); > } > ]]></mx:Script> > > <mx:Button id="myButton1" > click="changeLabel('2')" > label="Change Other Button's Styles" > /> > <mx:Button id="myButton2" > click="changeLabel('1')" > label="Change Other Button's Styles" > /> > </mx:Application> > > > > > ------------------------------------ > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Alternative FAQ location: > https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups > Links > > >
