joebox
asked on
How to get actionscript generated component to update its properties
Oh man I am obviously missing something here but not sure what it is. How can I get the HBox to update its width after an addChild(). I am tracing our the width before and after the addChild but it doesnt change.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
creationComplete="init();">
<mx:Script>
<![CDATA[
import mx.controls.Label;
import mx.containers.HBox;
private function init():void {
var row:HBox = new HBox();
var txt:Label = new Label();
txt.text = "just some text";
trace(row.width.toString());
row.addChild(txt);
trace(row.width.toString());
}
]]>
</mx:Script>
</mx:Application>
ASKER
thanks for the tip but it didn't bring any luck. Both traces are still coming up as 0. Here is the updated code that i ran.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
creationComplete="init();">
<mx:Script>
<![CDATA[
import mx.controls.Label;
import mx.containers.HBox;
private function init():void {
var row:HBox = new HBox();
this.addChild(row);
var txt:Label = new Label();
txt.text = "just some text";
trace(row.width.toString());
row.invalidateDisplayList();
row.invalidateSize();
row.addChild(txt);
trace(row.width.toString());
}
]]>
</mx:Script>
</mx:Application>
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Sorry took so long to get back to you. You rock for helping out. Your solution does work I just wanted to ask you one more thing about it. Is there any way to get the length of the string before you add it to the container.
var txt:Label = new Label();
txt.text = "just some text";
txt.validateNow():
trace(txt.measuredWidth);
this doesnt work.
.
var txt:Label = new Label();
txt.text = "just some text";
txt.validateNow():
trace(txt.measuredWidth);
this doesnt work.
.
Check out
http://livedocs.adobe.com/labs/air/1/aslr/flash/text/TextLineMetrics.html
http://blog.greensock.com/textmetrics/
From my experience these classes don't bother measuring themselves until they are added to the display list.
http://livedocs.adobe.com/labs/air/1/aslr/flash/text/TextLineMetrics.html
http://blog.greensock.com/textmetrics/
From my experience these classes don't bother measuring themselves until they are added to the display list.
ASKER
hey I thank you very very much for all your help.
Open in new window