283164 - getAttribute("value") returns null for HTMLSelectElement

Status: VERIFIED INVALID

(Core :: DOM: Core & HTML, defect)

Description

[Manuel]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

on the onchange event for a select, the getAttribute("value") returns null, but
the value property does return the correct value.
See the steps for a sample.

Reproducible: Always

Steps to Reproduce:
<select id="id3" onchange="show();">

fuction show()
{
    x = document.getElementById("id3");
    alert(x.value);
    alert(x.getAttribute("value"));
}

Actual Results:  
alerts:
<the selected value>
null

Expected Results:  
<the selected value>
<the selected value>

Comment 1

[Hixie (not reading bugmail)]

The "value" content attribute is indeed empty (in fact it isn't set at all),
hence the "null" response. The "value" DOM attribute is returning a value
because that's not the same as the content attribute -- see the DOM2 HTML spec:
   http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-6043025

Comment 2

[Evgeny]

I want just point you out to:

<input id="id1" name="cb" type="checkbox" checked onchange="myshow()">

<SCRIPT LANGUAGE="JavaScript">
function myshow()
{
    x = document.getElementById("id1");
    alert(x.value);                           
    alert(x.getAttribute("value"));
}
</SCRIPT>

    alert(x.value);  - always return 'on' never 'off' or some thing else       
                 
    alert(x.getAttribute("value")); - always null