Really all you need to do is to add one line at the end of updateDisplayList method

target.setContentSize(_contentWidth,y + _tileHeight);

Really all you need to do is to add one line at the end of updateDisplayList method

target.setContentSize(_contentWidth,y + _tileHeight);

override public function updateDisplayList(containerWidth:Number, containerHeight:Number):void
{
trace(“updateDisplaylist”);

_target = target;
_containerWidth = containerWidth;

var count:int = target.numElements;
if (count == 0) return;

var x:int=0;
var y:int=0;

var maxWidth:Number = 0;
var maxHeight:Number = 0;

for (var i:int = 0; i containerWidth)
{
x = 0;
y += _tileHeight + _verticalGap;
}
itemRenderer.setLayoutBoundsPosition(x, y);
itemRenderer.alpha = 1;
x += _tileWidth + _horizontalGap;
}
else
{
itemRenderer.alpha = 0;
}

}

maxWidth = Math.max(maxWidth, x + _tileWidth);
maxHeight = Math.max(maxHeight, y + _tileHeight);

target.setContentSize(maxWidth,maxHeight);

}

thanks