AS3 - Children are not displayed

I have a container symbol called BoxContainer. This can contain an unknown number of Radio Button components. To add these, I have an array of Radio Buttons called boxes. This is part of the CheckBoxes class.

Here's my problem: When I add the radio buttons as children to the stage, from the frame itself, it works just fine. Ho开发者_JAVA技巧wever, I need to add it to the BoxContainer movie clip. I have tried:

On the frame:

for(var i in Checkbox.boxes)
{
BoxContainer.addChild(Checkbox.boxes[i]);
}

On the box container object

for(var i in Checkbox.boxes)
{
addChild(Checkbox.boxes[i]);
}

However, both of these do not work. When I run the flash, the radio buttons are not visible. How can I fix this?

First, is "boxes" a static member of the Checkbox class? It seems like an odd setup, but I'll assume that it is. Also, consider renaming "BoxContainer" to "boxContainer" as names with initial-caps are assumed to be classes, not objects in standard AS3 naming conventions.

The for...in loop you're using is not going to work because i becomes a reference to the object in the array, not the index of the array. Consider using a numeric for loop:

for (var i : uint = 0; i < Checkbox.boxes.length; i++)
{
    BoxContainer.addChild(CheckBoxes.boxes[i]);
}