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RE: grid and treegrid

From: Bryan Garaventa <bryan.garaventa@whatsock.com>
Date: Sun, 23 Nov 2014 14:24:05 -0800
To: "'Jeff Orchard'" <porch@sympatico.ca>, <w3c-wai-ig@w3.org>
Message-ID: <001901d0076c$338bd990$9aa38cb0$@whatsock.com>
Personally I'm not aware of a treegrid component that is accessible out of the box, though others here may be.


I am interested in extending the standard TSG grid to support this however, so if I could pick your brain for a minute, that would
be helpful.


Part of my difficulty, is that I'm having trouble imagining what it's supposed to look like, and which nodes constitute expandable
triggering elements.


For the interaction of a treegrid, is the entire row of a branch control supposed to represent the expandable triggering element, or
just a cell within that row?


Presumably the new row/rows will be inserted after that row as part of the categorization, but if this data is included as part of a
native table structure, should this new content be indented, or not? If yes, then how do visual column headings retain meaning as
multiple levels are expanded?


Also, what type of data is typically displayed as part of treegrid cells, strings, toggles, since this typically represents database
information, I assume these would still cover the primary usage scenarios?






From: Jeff Orchard [mailto:porch@sympatico.ca] 
Sent: Friday, November 21, 2014 10:12 AM
To: 'Bryan Garaventa'; w3c-wai-ig@w3.org
Subject: RE: grid and treegrid


Thanks so much for this, Bryan.


I'm having no luck finding a functional ARIA Treegrid. Would there be user agent support even if one were successfully coded?


My client is open to commercial libraries..


I really need a solution. Can anybody point me to a functional ARIA Treegrid?






From: Bryan Garaventa [mailto:bryan.garaventa@whatsock.com] 
Sent: November-20-14 2:16 PM
To: 'Jeff Orchard'; w3c-wai-ig@w3.org <mailto:w3c-wai-ig@w3.org> 
Subject: RE: grid and treegrid


I don't have an ARIA Treegrid at present, but do have an ARIA Grid module available if it's helpful, powered by jQuery at



It supports many features, such as dynamic population and rendering, auto pagination, editable and readonly states, single or
multiselect, callbacks and full configuration, full restyling, etc.




The GitHub download includes Grid variations that can be used for experimentation and to understand the setup process.


The project is open source, so if you would like to add additional features to the Grid module file, this is easily doable.


To understand how all of this works, the following LinkedIn article will be helpful:



All the best,




From: Jeff Orchard [mailto:porch@sympatico.ca] 
Sent: Thursday, November 20, 2014 8:45 AM
To: w3c-wai-ig@w3.org <mailto:w3c-wai-ig@w3.org> 
Subject: grid and treegrid


Hi all,


Can anybody point me to accessible jQuery grid and treegrid components?


I'm aware of the University of Illinois example of a grid, here: http://test.cita.illinois.edu/aria/grid/grid2.php


And it appears that jQuery UI has put development of a grid widget on hold: http://wiki.jqueryui.com/w/page/47182351/Grid-Widget


Any help would be terrific, thanks.






Jeff Orchard, MI
Consultant, Accessible Digital Design

Toronto, Canada

Received on Sunday, 23 November 2014 22:44:37 UTC

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