Problems using addchild method to dynamically load buttons

Question

Hello,
I have researched the internet for about a week now losing sleep trying to figure this out.  Can someone help me?  I have an fla file with Quiz question.  For example:
on frame 50 I have images and radio buttons, a submit button with an instance name of submit_btn with the question The first capital of the United States
was New York City as a static text.  The action for this frame is:
stop();
import fl.controls.RadioButtonGroup;
var radioGroup1:RadioButtonGroup = new RadioButtonGroup("TriviaQuestion 1");
rb3.textField.autoSize = TextFieldAutoSize.LEFT;
rb1.label="True";
rb2.label="False";
rb3.label="NY is not in the US";
rb4.label="NY is a City";
rb1.group=radioGroup1;
rb2.group=radioGroup1;
rb3.group=radioGroup1;
rb4.group=radioGroup1;
submit_btn.addEventListener(MouseEvent.CLICK, submitClick);
function submitClick(event:MouseEvent):void {
if(radioGroup1.selection == null) {
return;
if(radioGroup1.selection.label == "True") {
status_txt.text=radioGroup1.selection.label+ " is correct! Well done.  The first capital of the United States was New York City in 1789.";
}else {status_txt.text=radioGroup1.selection.label+ " is incorrect! Try Again.";
next_btn.addEventListener(MouseEvent.CLICK, nextOnClick);
function nextOnClick(event:MouseEvent):void
gotoAndPlay(55);
Now my movie works fine this way.  What I want to do is practice adding the navigations (prevButton, nextButton and finishButton) with the addchild button in an AS file (linking it in the document properties).  I have done this if I add the questions as well but a little confused on how to make the navigation work if the questions are already on a time line.  So far this is what my ClassButton.as file looks like  (can't figure out how to import the questions);  If I get the prevhandler correct, the rest will be easy.
package
import flash.display.MovieClip;
//import flash.display.Sprite;  <<fla file went crazy when I used Sprite verses MovieClip
import fl.controls.Button;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import fl.controls.RadioButtonGroup;
public class ClassButton extends MovieClip {
//handling questions: --this is the big problem..don't know how to import RadioButtonGroups
private var quizQuestions:RadioButtonGroup;
//private var currentQuestion:QuizQuestions;
//private var radioGroup:RadioButtonGroup;
private var currentIndex:int = 0;
//buttons:
private var prevButton:Button;
private var nextButton:Button;
private var finishButton:Button;
//scoring and messages:
private var score:int = 0;
private var status:TextField;
public function ClassButton() {
createButtons();
//createQuestions();
/* little confused on what function to create to add questions
private function createQuestions() {
radioGroup = new RadioButtonGroup;
//create previous, next and finish button
private function createButtons() {
var yPosition:Number = 505;
prevButton = new Button();
prevButton.label = "Previous";
prevButton.x = 50.35;
prevButton.y = yPosition;
prevButton.addEventListener(MouseEvent.CLICK, prevHandler);
addChild(prevButton);
nextButton = new Button();
nextButton.label = "Next";
nextButton.x = prevButton.x + prevButton.width + 40;
nextButton.y = yPosition;
//nextButton.addEventListener(MouseEvent.CLICK, nextHandler);
addChild(nextButton);
finishButton = new Button();
finishButton.label = "Finish";
finishButton.x = nextButton.x + nextButton.width + 40;
finishButton.y = yPosition;
//finishButton.addEventListener(MouseEvent.CLICK, finishHandler);
addChild(finishButton);
private function showMessage(theMessage:String) {
status.text = theMessage;
status.x = finishButton.x + finishButton.width + 40;
status.y = 505;
/* blocked this out because it's incorrect.  the problem is the property (currentQuestion and quizQuestion)
private function prevHandler(event:MouseEvent) {
showMessage("");
if(currentIndex > 0) {
currentQuestion.visible = false;
currentIndex--;
currentQuestion = quizQuestions[currentIndex];
currentQuestion.visible = true;
else {
showMessage("There are no previous quesions. This is the first question.");
How do I make these buttons - next, prev and finish -  work for the questions using the addchild method in a separate AS file linked to the FLA file?  Is there a way to import the RadioButtons?  Is this possible.

Answer 1

Check out this Nugget.
It contains code that should help you get started.
Ben
Ben Rayner
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