Rails spinoffs - Mar 2007 - Element.down() / up() (DOM walking) doesn't work in IE

Hello,

I''m using Prototype''s ''DOM walking''
functionality (Element.up(),
Element.down()). It works fine in Firefox, but not in IE.
I''m using Firefox 2.0 for development, and just tested my script
within IE5, IE5.5, and IE6, all failing with the same message ("this
object doesn''t support this method.").


Source code example:

HTML:
<tr id=''row1''><td>test</td></tr>

JavaScript:
var td = $(''row1'').down();   //works in Firefox, not in IE


//current workaround for IE, but unhandy:

var td = getChildNode($(''row1'');

function getChildNode(node) {
    if(node.firstChild.nodeType == 3)  //textNode
        return node.childNodes[1];
    else
        return node.firstChild;
}

Any help?

Regards,
Felix


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Hey there,

Felix a écrit :
> HTML:
> <tr id=''row1''><td>test</td></tr>
> 
> JavaScript:
> var td = $(''row1'').down();   //works in Firefox, not in
IE
OK, definitely an issue, as such simple calls provably work on IE6 (at 
least), due to their unit testing on MSIE before release.  AAMOF, I just 
tried using the latest stable version (1.5.0), on MSIE 6 (XP SP2), and 
it works like a charm.

-- 
Christophe Porteneuve aka TDD
tdd-x+CfDp/qHev2eFz/2MeuCQ@public.gmane.org

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While not related, probably a good place to bring this up...

I had a few strange up/down issues with table rows and removing them but
mostly because IE implicitly declared the TBody and based on this example,
it looks like that doesn''t affect you.
It was weird, if I went tableObj.down(1) i got TR (instead of the implicit
tbody) but I couldn''t remove the TR, I had to remove it from the TBody
which
I couldn''t actually select.
I ended up putting a physical TBody in and assigning an ID to it instead of
the table- then everything worked as expected.
 I was testing in IE6 in this case.
I know the TBody is added by IE but I thought it would also be in the dom,
unless there is a workaround to ignore it in prototypejs..

Gareth


On 3/21/07, Christophe Porteneuve
<tdd-x+CfDp/qHev2eFz/2MeuCQ@public.gmane.org>
wrote:
>
>
> Felix a écrit :
> > HTML:
> > <tr
id=''row1''><td>test</td></tr>
> >
> > JavaScript:
> > var td = $(''row1'').down();   //works in Firefox, not
in IE
>
> OK, definitely an issue, as such simple calls provably work on IE6 (at
> least), due to their unit testing on MSIE before release.  AAMOF, I just
> tried using the latest stable version (1.5.0), on MSIE 6 (XP SP2), and
> it works like a charm.
>
>
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On Mar 21, 6:52 am, "Gareth Evans"
<agr...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> While not related, probably a good place to bring this up...
>
> I had a few strange up/down issues with table rows and removing them but
> mostly because IE implicitly declared the TBody
ALL (standards compliant) browsers will add a tbody element to tables
if there isn''t one in the source markup.

I would expect table.down to return a table section element (most
likely a tbody or thead).  If it does otherwise, I''d consider it a
bug.


 and based on this example,
> it looks like that doesn''t affect you.
> It was weird, if I went tableObj.down(1) i got TR (instead of the implicit
> tbody) but I couldn''t remove the TR, I had to remove it from the
TBody which
> I couldn''t actually select.
If you want the first row of a table and to ignore table section
elements, use:

  table.rows[0];

> I ended up putting a physical TBody in and assigning an ID to it instead of
> the table- then everything worked as expected.
>  I was testing in IE6 in this case.
> I know the TBody is added by IE but I thought it would also be in the dom,
It''s in all browser DOMs, not just IE''s.


--
Rob


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