MSDN (Microsoft Developer Network) Blog
Tuesday, December 05, 2006

ScreenReader Accessibility and Partial Updates in ASP.Net AJAX

By Kashif

Accessibility is an important aspect of software applications. It is ever so 
important on the web especially to ensure that everyone visiting your site
is enabled to access the content. It is also required by a number of government 
organizations.

The current state of UpdatePanel doesn't allow for complete screenreader 
accessibility with the popular screen readers currently available in the market.
Window Eyes works correctly and is able to read updated content in a partial 
postback in simple cases but doesn't work well when triggers are used. Also
Jaws doesn't handle re-reading content on partial updates.

To fix this issue I wrote a simple control which provides for this 
screen-reader accessibility. On any page that will participate in partial 
rendering,
you can employ this control - nothing else needs to be set - just drop this 
control on your page participating in partial rendering and you are set for
screen reader accessiblity - and it will take care of causing the screen reader 
to re-read content after a partial post-back. I am posting the control
herewith - please let me know if you find it useful or any other comments you 
might have regarding this. I tested with Window Eyes and it works well.

Thanks,

Kashif

http://blogs.msdn.com/kashif/archive/2006/12/05/screenreader-accessibility-and-partial-updates-in-asp-net-ajax.aspx

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E. G. Ravikumar
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