I put a TileGroup in a BorderContainer and set the width to 100%, but the content in the TileGroup did not fill the parent container, it leaves a big chunk of blank on the right part.

The code is:

 <s:BorderContainer width="100%" height="100%">
    <s:TileGroup width="100%" requestedColumnCount="2">
        <s:Button>
            button1
        </s:Button>
        <s:Button>
            button2
        </s:Button>
        <s:Button>
            button3
        </s:Button>
    </s:TileGroup>
</s:BorderContainer>

and the result is like this:

http://i.minus.com/iN39P7Us4cBm1.png

The width is already set to 100% but it does not work.

Is there any way to make the TileGroup fill the container like GridLayout does in Java swing?

http://www.java2s.com/Code/JavaImages/GridLayoutPane.PNG

Thank you very much.