Xml.onLoad variables undefined outside function

Hi all,
I've been searching this problem for a while and have tried a number of solutions found on google but nothing has worked so far. I'm sure this is a common problem, but due to my lack of flash knowledge I can't logically work through it as I'm used to windows form development, it makes sense to me that the function could access the variables I have defined but they dissapear after the .onLoad event. Does anyone know the common solution to this problem? I want to be able to pass the xml details into the local variables so I can pass on the details into a dynamic text field when movies are hovered over etc.
Thanks in advance for any help.
var myXML:XML = new XML();
myXML.ignoreWhite=true
var nav1TitleText:String;
var nav1Text:String;
var nav2TitleText:String;
var nav2Text:String;
var nav3TitleText:String;
var nav3Text:String;
var nav4TitleText:String;
var nav4Text:String;
myXML.load("navigation.xml");
myXML.onLoad = function(success){
if (success){
nav1TitleText = myXML.firstChild.childNodes[0].childNodes[1].firstChild.nodeValue;
trace(nav1TitleText); \\ This one shows the text from the xml file
nav1Text = myXML.firstChild.childNodes[0].childNodes[2].firstChild.nodeValue;
nav2TitleText = myXML.firstChild.childNodes[1].childNodes[1].firstChild.nodeValue;
nav2Text = myXML.firstChild.childNodes[1].childNodes[2].firstChild.nodeValue;
nav3TitleText = myXML.firstChild.childNodes[2].childNodes[1].firstChild.nodeValue;
nav3Text = myXML.firstChild.childNodes[2].childNodes[2].firstChild.nodeValue;
nav4TitleText = myXML.firstChild.childNodes[3].childNodes[1].firstChild.nodeValue;
nav4Text = myXML.firstChild.childNodes[3].childNodes[2].firstChild.nodeValue;
trace(nav1TitleText); // This one traces undefined

Thanks for your help, I have got it working now by doing as you suggested. In .net programming when you specify something to load, it will run the onload first, and then continue through to the rest of the code. I'm assuming flash runs all of the code (non-functions) regardless of order of code. So it was running the trace below the onLoad before the onLoad, even though I told it to myXML.Load() before the other code...
Seriously doesn't make sense to me.. lol
var myXML:XML = new XML();
myXML.ignoreWhite=true
var nav1TitleText:String;
var nav1Text:String;
var nav2TitleText:String;
var nav2Text:String;
var nav3TitleText:String;
var nav3Text:String;
var nav4TitleText:String;
var nav4Text:String;
myXML.load("navigation.xml");
myXML.onLoad = function(success){
if (success){
nav1TitleText = myXML.firstChild.childNodes[0].childNodes[1].firstChild.nodeValue;
trace(nav1TitleText);
nav1Text = myXML.firstChild.childNodes[0].childNodes[2].firstChild.nodeValue;
nav2TitleText = myXML.firstChild.childNodes[1].childNodes[1].firstChild.nodeValue;
nav2Text = myXML.firstChild.childNodes[1].childNodes[2].firstChild.nodeValue;
nav3TitleText = myXML.firstChild.childNodes[2].childNodes[1].firstChild.nodeValue;
nav3Text = myXML.firstChild.childNodes[2].childNodes[2].firstChild.nodeValue;
nav4TitleText = myXML.firstChild.childNodes[3].childNodes[1].firstChild.nodeValue;
nav4Text = myXML.firstChild.childNodes[3].childNodes[2].firstChild.nodeValue;
loadedValues();
function loadedValues()
trace(nav1TitleText);
navItem1.title1.text = nav1TitleText;
navItem2.title2.text = nav2TitleText;
navItem3.title3.text = nav3TitleText;
navItem4.title4.text = nav4TitleText;
Thank you again for your reply!
Bex

Similar Messages

Xml.onLoad variables undefined outside

Hi all,
I've been searching this problem for a while and have tried a number of solutions found on google but nothing has worked so far. I'm sure this is a common problem, but due to my lack of flash knowledge I can't logically work through it as I'm used to windows form development, it makes sense to me that the function could access the variables I have defined but they dissapear after the .onLoad event. Does anyone know the common solution to this problem? I want to be able to pass the xml details into the local variables so I can pass on the details into a dynamic text field when movies are hovered over etc.
var myXML:XML = new XML();
myXML.ignoreWhite=true
var nav1TitleText:String;
var nav1Text:String;
var nav2TitleText:String;
var nav2Text:String;
var nav3TitleText:String;
var nav3Text:String;
var nav4TitleText:String;
var nav4Text:String;
myXML.load("navigation.xml");
myXML.onLoad = function(success){
if (success){
nav1TitleText = myXML.firstChild.childNodes[0].childNodes[1].firstChild.nodeValue;
trace(nav1TitleText); \\ This one shows the text from the xml file
nav1Text = myXML.firstChild.childNodes[0].childNodes[2].firstChild.nodeValue;
nav2TitleText = myXML.firstChild.childNodes[1].childNodes[1].firstChild.nodeValue;
nav2Text = myXML.firstChild.childNodes[1].childNodes[2].firstChild.nodeValue;
nav3TitleText = myXML.firstChild.childNodes[2].childNodes[1].firstChild.nodeValue;
nav3Text = myXML.firstChild.childNodes[2].childNodes[2].firstChild.nodeValue;
nav4TitleText = myXML.firstChild.childNodes[3].childNodes[1].firstChild.nodeValue;
nav4Text = myXML.firstChild.childNodes[3].childNodes[2].firstChild.nodeValue;
trace(nav1TitleText); // This one traces undefined

Hi, thanks for your reply. For some reason I've ended up with two of the same posts.
The other one is here: http://forums.adobe.com/message/2204418#2204418 and has been answered.
Cheers,
Bex

_global variable lost outside of function?

Vexing riddle: why are my global variables undefined outside
of the functions that use them?
Loading XML file and creating arrays from the child nodes.
Like this:
var modules:Array = this.firstChild.childNodes;
_global.moduleContents = new Array();
for (var i = 0; i<modules.length; i++) {
_global.moduleContents.push(modules
.attributes.contents);
then I have another function that recursively extracts each
index from _global.moduleContents array and pushes them into a
_global. pageContents array. (see attached code)
I made sure to use _global. in front of all global variables.
The code workd flawlessly in itself. I am able to trace the whole
array or single array indices from within the functions.
But they are undefined outside of the functions! I checked to
make sure there is no local variable of the same names - in every
case I use _global before the variable name.
The crazy part of it is I tried testing some simple functions
with global variables in a new movie to understand the scope issues
and they worked fine!
function messages() {
_global.greetings = ["hello", "hi", "how are you?"];
function sayHi() {
_global.greetings.push("how goes it?");
sayHi();
messages();
trace("this is outside: "+_global.greetings);
Why not in this:

Gotcha, what is happening is that you call a loading script
that basically works in the background of other scripting
operations, you can call multiple load actions and they will all
execute at the same time, because you have your trace call after
the load action and you are not waiting for that file to be loaded
you are getting an 'undefined' var.
You may want to put something in at the end of all of your if
(success) statements like
_global.docstructureLoaded = true;
checkLoadStatus();
then say this on your next load function;
_global.pageContentsLoaded =true;
checkLoadStatus();
then in your root area
checkLoadStatus(){
if(_global.pageContentsLoaded==true && .... ){
//when all your loads are done do this ...
Just to make sure that you arn't calling any other functions,
or moving your timeline ahead before your data gets to the right
place.

Losing variable values between functions...

hi!
I'm trying to do something simple in actionscript as simple as this:
- Create a variable: var urlVideo:String;
- Use that variable inside a function and give it a value: urlVideo = videoElemento.url.text();
- Then create a new variable and give it the urlVideo value: var url:String = urlVideo;
My problem is that urlVideo loses it's value
Why is that happening?
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var urlVideo:String;
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Can anyone help me?

The above post is correct providing the way you displayed the code in your original post is the same way you have it in your program
function getVideo(videosInput:XML):void
var listaVideos:XMLList = videosInput.Video;
for each (var videoElemento:XML in listaVideos)
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urlVideo = videoElemento.url.text();
trace(urlVideo); //has a value
break;
var url:String = urlVideo; this line occurs outside the function which means that until getVideo is called urlVideo will always be null because its never set until getVideo actualy gives it a value.
zeroskillz method will set the url to play right inside the function which is a good way to organize.. keep behaviors together.
now if you placed url= urlvideo before the end of the function you would have seen a trace like thus:
function getVideo(videosInput:XML):void
var listaVideos:XMLList = videosInput.Video;
for each (var videoElemento:XML in listaVideos)
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break;
var url:String = urlVideo //has value

[Bash] How to `declare` a global variable inside a function?

#!/bin/bash
# Not using declare -A, array will be treated as indexed array rather than an associative array
seta()
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printf -v a_$n[j] %s j$n
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eval echo inside setb: b_$n[k] = \$\{b_$n\[k\]\}
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echo
# The bad solution, only works if we know beforehand how many c_? arrays will be assigned inside setc()
for ((n=0;n<3;n++)); do
declare -A c_$n
done
setc()
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printf -v c_$n[j] %s j$n
eval echo inside setc: c_$n[k] = \$\{c_$n\[k\]\}
done
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echo outside: c_0[k] = ${c_0[k]}
echo outside: c_0[j] = ${c_0[j]}
My original code does the declare -A as in setb(). I was surprised when I saw all blank output... Now the problem is illustrated clearly by the setb() example.
The setc() example works, but a bit ugly: look at the two 3's...
My ideal solution would be, something like `declare_global -A b_$n` in setb()
Any ideas?

with current bash versions, i don't think it is possible to declare global associative arrays in functions.
what you are after is the "-g" option of typeset which is available in zsh.
i think i read somewhere that something similar may be planned for bash 4.2.

LoadMovie() & XML.onLoad query(AS2)

Hi all :)
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Example
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www.javono.com

Hi John,
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Can a Variable represent a Function?

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Can't add a new account in FireFTP. Get XML Parsing Error: undefined entity Location: chrome://fireftp/content/accountManager.xul Line Number 216, Column 17:

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Try updating FireFTP to the latest 2.0.20 version.
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Sheli

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Using a global variable within a function

Hi all,
I'm trying to learn how to use global variables, but can't quite get it right:
Im trying to use two buttons, named UpButton and DownButton to control one global variable, p1
A text field, named "Value" displays p1.
Here's my code:
p1 = 0;
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However, it seems to be treating p1 as two different variables.
Here's a link to the page to show you what I mean, apologies but this link wont work in google chrome because I'm using dropbox as a server temporarily
In other browsers you may need to click "Show all content" or similar to any security warnings...
https://dl.dropboxusercontent.com/u/83693404/ButtonTest/buttons.html
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https://app.box.com/s/0shocivto8fl295h62uq
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Katherine

Hi Katherine,
However, it seems to be treating p1 as two different variables.
Indeed, your code created two different variables in two different scopes (I guess it as to do with JavaScript closures, but do not ask me more, I am still a bit foggy about that idiosyncrasy ).
In JavaScript, a primitive parameter – this is the case here with p1, a Number value –, is passed by value. In other words, a copy of the value is made. Your code handles two copies of the value stored in p1.
This contrasts with an object parameter, which is passed by reference (address in memory), without copy. Your code would work if Numbers were passed by reference : the two Var (p1) would then point to the same address.
The intent behind your trial is a global variable.
1) Let us be as simple as possible :
Stage : document.compositionReady event handler
p1 = 0;
buttonClick = function( Increment)
p1 += Increment;
sym.$( "Value").html( p1);
Stage : DownButton.click event handler
buttonClick(-100);
Stage : UpButton.click event handler
buttonClick(100);
Without being preceded by the var keyword the variables are global.
So the Number variable p1 can be accessed inside function buttonClick.
And the Function variable buttonClick as well, is accessible inside click event handlers, everything (function definition +function calls) being inside the same symbol (Stage).
2) Now, suppose this is no longer the case : you want to access a variable from another symbol.
We create a new GraySquare symbol, instantiated both in the DownButton symbol (instance name DownSquare) and in the UpButton symbol (instance name DownSquare).
Stage : document.compositionReady event handler
p1 = 0;
sym.buttonClick = function( Increment)
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sym.$( "Value").html( p1);
The sym. prefix is now necessary to make the variable (here a Function, but you would proceed exactly the same with a String, Number or Boolean) accessible in other symbols.
DownButton symbol : DownSquare.click event handler
sym.getComposition().getStage().buttonClick( -100);
UpButton symbol : UpSquare.click event handler
sym.getComposition().getStage().buttonClick( 100);
From these other symbols, the sym.getComposition().getStage(). prefix is necessary to acces to our global variable (function).
The two examples are downloadable here : https://app.box.com/s/6vkyiqk7i8zwlw0j1wk1
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Xml.onLoad variables undefined outside function

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