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Re: H43 and header cell relationships

From: Sailesh Panchang <sailesh.panchang@deque.com>
Date: Wed, 19 Feb 2014 16:51:55 -0500
Message-ID: <CAJi9CqpZ=ouQ+vY6EoQBLn7ev+vJZLNC2z+fHYwJbJf1S2GX5A@mail.gmail.com>
To: "Tongue, Matt" <Matt.Tongue@nrc-cnrc.gc.ca>
Cc: "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Yes, the headers attribute of every data cell should contain the id
references of all associated header cells. When focus is on a
particular data cell, that cell can expose all related header cells to
the screen reader then.

On 2/19/14, Tongue, Matt <Matt.Tongue@nrc-cnrc.gc.ca> wrote:
> When marking up a table with multiple levels of headings, is it mandatory to
> always put all header cell IDs into the headers attribute of a cell?
> For example, if a data cell has 3 header cells, but the 2nd header cell's
> headers attribute references the 1st header's ID, would it not suffice for
> the data cell to just reference header cells 2 and 3, since header cell 2
> references header cell 1 (thus creating a relationship already)? Or must
> every header always be identified for every cell, no matter what?
> Reference: http://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/H43
Received on Wednesday, 19 February 2014 21:52:23 UTC

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