Mega Code Archive
Use multiple mx
<![CDATA[
" src="http://www.rntsoft.com/Code/FlexImages/UsemultiplemxAddChild.PNG"
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:states>
<mx:State name="NewVBox">
<mx:AddChild relativeTo="{v1}">
<mx:VBox id="v2" />
</mx:AddChild>
<mx:AddChild relativeTo="{v2}">
<mx:Button id="buttonNew1" label="New Button" />
</mx:AddChild>
<mx:AddChild relativeTo="{v2}">
<mx:Button id="buttonNew2" label="New Button" />
</mx:AddChild>
<mx:AddChild relativeTo="{v2}">
<mx:Button id="buttonNew3" label="New Button" />
</mx:AddChild>
</mx:State>
</mx:states>
<mx:VBox id="v1">
<mx:Button label="Change State" click="currentState = currentState=='NewVBox' ? '':'NewVBox';" />
</mx:VBox>
</mx:Application>
]]>