How can I retrieve all MC in a Stage in AS3?

How can I retrieve all MC in a Stage?

I want to call addEventListener for all MovieClip present in my stage and if it's possible in a selected frame number of my scenario Something like that pseudo code

for(i=0; nbOfChild ; i++)
   if(stage.childAt(i) is MC and isInTheFrameWithLabel('foo') )
     stage.childAt(i).addEventListerner(MyStuf开发者_Python百科f)

Pretty much exactly what you have..

for(var i:int = 0; i<numChildren; i++)
{
    var e:DisplayObject = getChildAt(i);
    if(e is MovieClip)
    {
        // do stuff with e
        trace(e);
    }
}

You could also be a tricky trickster and do something like this:

/**
 * Iterate through MovieClips within a container and parse them through handler
 * @param container The container to iterate through and find MovieClips in
 * @param handler A function that accepts MovieClip as its only parameter
 */
function each(container:DisplayObjectContainer, handler:Function):void
{
    for(var i:int = 0; i<container.numChildren; i++)
    {
        var e:DisplayObject = container.getChildAt(i);
        if(e is MovieClip) handler(e);
    }
}

// Example
each(this, function(mc:MovieClip):void
{
    trace(mc);
    mc.x += 10;
});

you should also push those movie clips to an array in order to know the movie clip who has trigger the event, so you would have like:

var holdObjects:Array = new Array();
for(var i:int = 0; i<numChildren; i++)
{
    var e:DisplayObject = getChildAt(i);
    if(e is MovieClip)
    {
        // do stuff with e
        trace(e);
        e.addEventlistene(...);
        holdObjects.push(e);
    }
}