Skip navigation
TOverturf
TOverturf
Currently Being Moderated

Variables

Apr 26, 2011 7:42 AM

Hey Guys, I have one string variable that change when I push a button. Now usually when I add an eventlisenter to a movieclip I do this:

 

movieclipname.addEventListener();

 

But now the variable is holding the name of the Mc to which to listener should be added. I tried this:

 

variablename.addEventListener();

 

-Tim

561 Views   10 Replies   Latest reply: Ned Murphy, Apr 27, 2011 9:34 AM
 
Replies
  • Ned Murphy
    Currently Being Moderated
    1. Ned Murphy,
    Apr 26, 2011 8:11 AM   in reply to TOverturf
    Report

    If variablename is supposed to be a String value then use the bracket notation when you want to have a String interpretted as an object...

     

    this[variablename].addEventListener....

     
    |
    Mark as:
  • TOverturf
    Currently Being Moderated
    2. TOverturf,
    Apr 27, 2011 5:42 AM   in reply to Ned Murphy
    Report

    Hey Ned,

     

    Thanks, but it works partly. Simply adding an event listener works, but farther down in my code I have this:

     

    this[unitNumberUrl].price.text = price;

     

    The unitNumberUrl is a string and looks something like this "mc1.mc2", but it doesnt work. Ideas?

     
    |
    Mark as:
  • Ned Murphy
    Currently Being Moderated
    3. Ned Murphy,
    Apr 27, 2011 6:28 AM   in reply to TOverturf
    Report

    Yep, you can't use strings like that with the bracket notation.  Each bracket set can only represent one object  "mc1.mc2"  is trying to represent two of them.

     

    You can do this["mc1"]["mc2"].etc....  but not this["mc1.mc2"].etc...

     
    |
    Mark as:
  • TOverturf
    Currently Being Moderated
    4. TOverturf,
    Apr 27, 2011 6:53 AM   in reply to Ned Murphy
    Report

    now I have:

     

    var var1:String = "mc1"

    var var2:String = "mc2"


    this[var1][var2].price.text =.....

     

    But it still gives me the same error.

     

    TypeError: Error #1010: A term is undefined and has no properties.

    at Function/ruse_fla:MainTimeline/onBtnCClick/ruse_fla:completeConfigura tion()[ruse_fla.MainTimeline::frame1:114]

    at flash.events::EventDispatcher/dispatchEventFunction()

    at flash.events::EventDispatcher/dispatchEvent()

    at flash.net::URLLoader/onComplete()

     

    -Tim

     
    |
    Mark as:
  • Ned Murphy
    Currently Being Moderated
    5. Ned Murphy,
    Apr 27, 2011 6:57 AM   in reply to TOverturf
    Report

    Try using traces to see where it is falling out.  The error message will indicate which line of code is causing the problem (currently indicates line 114)

     

    trace(this);

    trace(this[var1]);

    trace(this[var1][var2]);

    trace(this[var1][var2].price);

    this[var1][var2].price.text =.....

     
    |
    Mark as:
  • Cyboide
    Currently Being Moderated
    6. Cyboide,
    Apr 27, 2011 7:08 AM   in reply to TOverturf
    Report

    I see you want to  have "values" changed dynamicaly with only a few lines of code. That's always the goal.

     

    But I was  wondering if you thought of using the MovieClip's main caracteristic,  which is being a dynamic class. I do not see your whole code, but  maybe you could think about storing the actual Textfields or movieclips as the buttons' properties. Inside your MouseEvent function, you could target them, (maybe) more easily.

     

    ____________________

    Design Cyboïde

    Création de site web

     
    |
    Mark as:
  • TOverturf
    Currently Being Moderated
    7. TOverturf,
    Apr 27, 2011 7:22 AM   in reply to Ned Murphy
    Report

    trace(this);                         [object global]                                

    trace(this[var1];                    [undefined]

     

    Im still not quite sure what the "this" thing means. Could you explain?

     

    -Tim

     
    |
    Mark as:
  • Ned Murphy
    Currently Being Moderated
    8. Ned Murphy,
    Apr 27, 2011 7:28 AM   in reply to TOverturf
    Report

    In general, "this" is a reference to the current timeline.

     

    trace(this[var1];                    [undefined]

     

    Aside from a typo in the code, the [undefined] is indicating you have an issue with the object you are trying to target  It doesn't exist.  You need to be sure you've named "mc1" by that name and that it is present when that code executes.

     
    |
    Mark as:
  • TOverturf
    Currently Being Moderated
    9. TOverturf,
    Apr 27, 2011 8:10 AM   in reply to Ned Murphy
    Report

    Ok, I remove the "this" code:

     

    trace(this[var1])  ---> trace([var1])

     

    and It worked! So I changed my code

     

    [var1][var2].price.text = price;

     

    But I got the 1084: Syntax error:expecting identifier before dot.

     
    |
    Mark as:
  • Ned Murphy
    Currently Being Moderated
    10. Ned Murphy,
    Apr 27, 2011 9:34 AM   in reply to TOverturf
    Report

    Yep, you need to have some kind of targeting lead-in for the bracket notation to work, and "this" is usually a workable option.

     

    When you use  trace([var1]) you are merely tracing the elements of an array you just created when you used [var1] alone. 

      

    The problem you seem to have is that you do not have an object on the stage when that code executes that has the instance name "mc1" assigned to it.

     

    If you replace 

     

    this[var1][var2].price.text;  

     

       with 

     

    mc1.mc2.price.text;

     

    you'll probably still be getting the error, though it might turn into a 1009 error.  If so, that's indicating for certain that there is no object named mc1 around where that code is.

     
    |
    Mark as:
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points