How to fit my content nicely in the frame of the pop up window

i have call my mxml file that I have done in to the pop up window. However it did nt fit to the frame.I tried to extend the frame however only the frame extends the content area did not . Why so?

This is my pop up codes :

<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" 
                title="Interdep开发者_JS百科artment Relationship" x="300" y="30" showCloseButton="true" close="PopUpManager.removePopUp(this);" borderAlpha="0.25" width="1000" height="800" xmlns:ilog="http://www.ilog.com/2007/ilog/flex" xmlns:diagram="http://www.ibm.com/xmlns/prod/ilog/elixir/diagram/2010" xmlns:local="*">

    <mx:Script>
        <![CDATA[       
            import mx.managers.PopUpManager;

        ]]>
    </mx:Script>

    <local:desmondinterrls/>
    <mx:Button label="Cancel" click="PopUpManager.removePopUp(this);"/>

</mx:TitleWindow>