You have exponential timer creation occurring! At 5 ticks your timer will complete. Both onTick and onTimerComplete will occur (in that order), and 2 more timers will get created. In 5 seconds both onTick and onTimerComplete will occur on both of those timers and 4 more timers will get created. in 5 seconds. 8 more. 16 more.. 32 more. etc.
To protect against this kind of bad coding, a good practice for timers is to declare them on the class (not within the function as you have), and when you want to start them, check to make sure they aren't running first, if they are, stop them beforehand. and don't declare new timers if at all possible - instead use the reset function. HTH! Seth From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of doepositive Sent: Thursday, December 20, 2007 12:03 PM To: [email protected] Subject: [flexcoders] IE keeps growing and growing and growing I'm changing the selectedIndex of a data grid with a simple function call triggered by a Timer. I posted something a few weeks ago about the same topic when changing an image. I was under the impression that it was the image that was makeing the IE object size grow but it seems with this new test that there is another issue with automating a function with a Timer. Does anybody have any work arounnd for this problem? I can't belive that this type of thing is an issue with a platform like flex. Here is the working code...it's pretty straight forward. I just don't get it. ---------------------------CODE--------------------------------------- <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="vertical" width="577" height="68" horizontalAlign="center" paddingBottom="0" paddingLeft="0" paddingRight="0" paddingTop="0" verticalAlign="middle" initialize="RSSfeed.send()" creationComplete="ShortTimer()"> <mx:Script> <![CDATA[ import mx.controls.Alert; private function nav(myUrl:String):void { var urlToNav:URLRequest = new URLRequest(myUrl); navigateToURL(urlToNav,"_blank"); } [Bindable] private var num:int = 1; ////move the visible section of the data grid in focus private function changeIndex():void { entries.scrollToIndex(num);//entries refers to the data grid below if (num < RSSfeed.lastResult.rss.channel.item.length){ num++;//increase if thess than the length of the feed }else{ num = 1;//set back to 1 } } private function ShortTimer():void { // creates a new five-second Timer var minuteTimer:Timer = new Timer(1000, 5); // designates listeners for the interval event and the completion event minuteTimer.addEventListener(TimerEvent.TIMER, onTick); minuteTimer.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete); // starts the timer ticking minuteTimer.start(); } private function onTick(evt:TimerEvent):void { if(evt.target.currentCount == 5){ ShortTimer(); } } public function onTimerComplete(evt:TimerEvent):void { changeIndex() ShortTimer(); } ]]> </mx:Script> <mx:Style> DataGrid { backgroundAlpha: 1; backgroundColor: #000000; alternatingItemColors: #ffffff, #eff1f2; horizontalGridLines: true; letterSpacing: 0; horizontalGridLineColor: #990000; verticalGridLines: false; useRollOver: false; borderThickness: 2; borderColor: #ffffff; selectionColor: #000000; color: #ff0000; textSelectedColor: #ff0000; textIndent: 0; dropShadowEnabled: true; shadowDistance: 3; shadowDirection: right; fontSize: 14; fontWeight: normal; headerStyleName: "mydataGridHeaderStyle"; } .mydataGridHeaderStyle { color: #999999; letterSpacing: 0; } </mx:Style> <mx:HTTPService showBusyCursor="true" id="RSSfeed" url="http://www.weather.gov/alerts/ma.rss"; resultFormat="object" /> <mx:DataGrid sortableColumns="false" width="506" height="48" id="entries" dataProvider="{RSSfeed.lastResult.rss.channel.item}" horizontalCenter="0" verticalCenter="0" click="nav(RSSfeed.lastResult.rss.channel.item [entries.selectedIndex].link)" cornerRadius="6" borderStyle="solid" borderColor="#00ff00" alternatingItemColors="[#000000, #000000]" selectedIndex="1"> <mx:columns> <mx:DataGridColumn dataField="title" headerText="Mass Weather Advisory Feed" fontSize="9" wordWrap="true"/> </mx:columns> </mx:DataGrid> </mx:Application>
