Give the button inside the repeater an id.  Then the button will be 
accessible through an array syntax, off the button id.

I.E.

private function changeSize():void{
     btnWhatever[0].width = 100;
     btnWhatever[0].height = 100;
}

<mx:Button id="btnWhatever" height="50" width="50" 
    label="{String(rp.currentItem)}"/>

--- In [email protected], "shemeshkale" <[EMAIL PROTECTED]> 
wrote:
>
> i have a Tile with repeater inside.
> inside the repeater - a button.
> pretty simple.
> 
> with a slider i want to change the size (width/height) of the 
button.
> i works great if i bind width/height to slider value.
> but how i do it the other way? from the slider to the button?
> what should come inside the changeSize function?
> 
> here is a basic code:
> 
> <?xml version="1.0"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";>
> 
>     <mx:Script>
>         <![CDATA[
>             [Bindable]
>             private var dp:Array = [132456789, 2, 3, 4, 5, 6, 7, 
8, 9]; 
>             
>             private function changeSize():void{
>               //what should be here?
>             }   
>             
>         ]]>
>     </mx:Script>
> 
>     <mx:Panel title="Repeater Resize" width="75%" height="75%" 
>         paddingTop="10" paddingLeft="10" paddingRight="10"
> paddingBottom="10">
>   
>         <mx:HSlider maximum="200" minimum="100" value="120" 
id="slider1"
>               change="changeSize()" liveDragging="true"/>
>               
>         <mx:Tile direction="horizontal" borderStyle="inset" 
>             horizontalGap="10" verticalGap="15" width="100%"
>             paddingLeft="10" paddingTop="10" paddingBottom="10"
> paddingRight="10">
>             <mx:Repeater id="rp" dataProvider="{dp}">
>                 <mx:Button height="50" width="50" 
>                     label="{String(rp.currentItem)}"/>
>             </mx:Repeater>    
>         </mx:Tile>
>     </mx:Panel>  
> </mx:Application>
>





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