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How JSP transform Struts tags using DOM ?

Posted on 2006-07-13
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Last Modified: 2013-11-19
When I use DOM in javascript to construct a Struts tag, per example:

var new_obj = document.createElement("input")
new_obj.type='text'                    
new_obj.name='formLigacoesMultiplasCamadaIFrame'
new_obj.property='nomeLigacao'
new_obj.styleClass='SubFormTextbox'
new_obj.maxlength='10'  
new_obj.disabled='false'
parent_obj.appendChild(new_obj)    

JSP transform this in the following tag:

<input disabled property=”nomeLigacao” styleClass=”SubFormTextbox” maxlength=”10”>

But when i construct the tag in HTML:

<html:text name="formLigacoesMultiplasCamadaIFrame" property="nomeLigacao" styleClass="SubFormTextbox" maxlength="10" disabled="false"/>

JSP transform this in the following tag:

<input class=SubFormTextbox disabled maxlength=10 value=teste name=nomeLigacao>

Note: in the last tag, “teste” is the value that I gave to “nomeLigacao” in my Stuts action

Could anyone tell why this happens? I need to obtain the same result through DOM or through HTML.

Thanks
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Question by:NUNOPALMA
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Expert Comment

by:dakyd
ID: 17101419
I'm not sure I understood your question, but if you're asking how to set the value of an input using the DOM, then you'd do it like this:

var new_obj = document.createElement("input");
new_obj.type='text';
new_obj.name='formLigacoesMultiplasCamadaIFrame';
new_obj.property='nomeLigacao';
new_obj.styleClass='SubFormTextbox';
new_obj.maxlength='10';
new_obj.disabled='false';
new_obj.value = 'teste';
parent_obj.appendChild(new_obj);

Hope that helps.
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Author Comment

by:NUNOPALMA
ID: 17101620
No, it isn't exactly that. I want to set the value and the other attributes of an input using my Struts action and my CSS within DOM

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LVL 19

Expert Comment

by:dakyd
ID: 17101805
Wait, so you want Struts to interact with the DOM?  I don't really use Struts, but from my understanding, that's done on the server-side, isn't it?  The DOM is on the client-side, so you can't make the two interact very easily.  What exactly are you trying to do?  If all you want is to modify the HTML on a given page, the DOM should be enough.  I guess I'm just not following what the desired result is, so I'm not sure what to suggest.

Also, I just noticed that I was setting the CSS class wrong.  Instead of this:
  new_obj.styleClass='SubFormTextbox';
you should use:
  new_obj.className='SubFormTextbox';
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Author Comment

by:NUNOPALMA
ID: 17108485
I already solved my problem. I used innerHTML instead of DOM to construct the Struts tags. It works as i wanted: it uses the action that i defined.

Thanks dakyd
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LVL 19

Accepted Solution

by:
dakyd earned 1000 total points
ID: 17108768
Glad to hear it's working the way you want, although anything you can do with innerHTML should be possible with the DOM as well.  *shrug* So long as it works.
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