[Arp] Re: Using ArpForms

[Nils Millahn]

Hi Bruce,

has this been resolved now? Your Actionscript code looks fine, except 
for your declaration of the actionButton property - you are typing it as 
'Button'. If I'm not mistaken, you should be using mx.controls.Button 
here - Button on its own refers to the Button object that was around in 
Flash 5 and MX.

private var actionButton:Button;

becomes

private var actionButton:mx.controls.Button;

(even though you import mx.controls.*, you still need to be explicit 
here when dealing with Button)

With your code you should be getting a compile-error when you try to 
addEventListener to the button - is that the case? [There is no method 
with the name 'addEventListener']

- Nils.


Bruce Raggett wrote:

> Hello Omar,
>  
> Thank you for your reply.
>  
> I am still not able to connect components within the .fla to vars 
> within my class.
>  
> After reading your email message, I first attempted to set up a movie 
> clip in the library using the following class which extends 
> com.ariaware.arp.ArpForm:
>  
> import com.ariaware.arp.ArpForm;
> import mx.controls.*;
>  
> class com.phicorp.calculator2.Application extends com.ariaware.arp.ArpForm
> {
>  
>  private var inputText:TextInput;
>  private var outputText:TextInput;
>  private var actionButton:Button;
>  
>  function Application ()
>  {
>   stop();
>  }
>  
>  function onLoad ():Void
>  {
>   actionButton.addEventListener("click", this);
>  }
>  
>  function click ():Void
>  {
>   outputText.text = inputText.text;
>  }
>  
> }
>  
> My expectation was that if I could get the above class to run and I 
> clicked the button after entering text into the TextInput field called 
> inputText, then this text would appear in the TextInput field called 
> outputText.
>  
> I successfully set up the movie clip in the library using the 
> instructions in the ARP Developer's Manual under the heading "Using 
> ARPForms". However one of the instructions there "Drag an instance of 
> the Application symbol on stage", which I interpreted to mean drag the 
> symbol from the library to the stage, resulted in the following error 
> message: "You cannot place a symbol inside itself".
>  
> I then dragged three components from the Components frame onto the 
> stage, two TextInput components and one Button component, and in the 
> Properties frame changed the instance names of the three components to 
> inputText, outputText, and actionButton.
>  
> I then tested my application using Control > Test Movie, but clicking 
> the button did not display the inputText text in the field called 
> outputText.
>  
> When I was placing the components onto the stage, I noticed that I was 
> placing the components onto the Document as opposed to a Movie Clip, 
> and thinking this might be significant, I repeated the test as follows:
>  
> I used File > Import > Import to Library to import a .gif image into 
> the library.
>  
> I then dragged the image from the library onto the stage and resized 
> it on the stage.
>  
> I then clicked on the image in the stage, selected Convert to Symbol 
> in the pop-up menu, and then associated the movie clip that it created 
> in the library with the class documented above.
>  
> I then dragged three components from the Components frame onto the 
> movie clip on the stage, two TextInput components and one Button 
> component, and in the Properties frame changed the instance names of 
> the three components to inputText, outputText, and actionButton.
>  
> I then tested this application using Control > Test Movie, but again 
> clicking the button did not display any inputText text in the field 
> called outputText.
>  
> Can you see what I am doing wrong, and also answer the following 
> questions for me?
> (1) Does my class above appear to be correct ie should clicking the 
> button display the inputText text in the outputText field?
> (2) Does it matter whether the components are dropped onto the 
> Document or onto the movie clip on the stage?
> (3) When I received the error message "You cannot place a symbol 
> inside itself", what should I have done to make the movie clip appear 
> on the stage (I clicked on various parts of the stage but the Property 
> frame always displayed Document)?
> (4) When I added the components to the stage, I changed their instance 
> names to the var names in my class. Is this how the connection is made?
> (5) The var names existed in my class before I added the components to 
> the stage. Is this ok, or do I need to add the components to the stage 
> before defining the vars in my class?
>  
> I'm probably doing something dumb, but hopefully you can get me back 
> on the right track.
>  
> Many thanks,
> Bruce.
>  
>
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