Accessing Dynamic Movieclip Children

Question

There is a lot of code that I have but here is snippet to get to the point.  I have created a Movicelip called via actionscript called "McButton".  Then I created 10 MovieClips within that MovieClip ("McDot0", "mcDot1", etc).  I need to know how to access mcButton.mcDot3 to change its color when button3 (mc already on stage) is clicked but can not figure it out.
I have tried both of these below but it does not work:
mcButton.mcDot3.transform.colorTransform = cityColor;
getChildByName("mcButton").getChildByName("mcDot3").transform.colorTransform = cityColor;
This is the code below that I have used to create the Dynamic Movieclips:
var button:Container = new Container();
button.name = "mcButton";
this.addChild(button);
for (var a:int = 0; a < 10; a++) {
     var dot:Dot = new Dot();
      dot.name = "mcDot" + a;
    MovieClip(getChildByName("mcButton")).addChild(dot);
Can someone please help me see the light.
Thanks

Answer 1

In order to change a color using color transform, first you must create a new ColorTransform object and than assign it to transform.colorTransform property.
i,e,
var cityColor: ColorTransform = new ColorTransform();
getChildByName("mcButton").getChildByName("mcDot3").transform.colorTransform = cityColor