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Making an Web Site Accessible Scott Mitchell May 2004 Applies to: Microsoft® Microsoft® .NET Framework Microsoft® Visual Studio® .NET Summary: Take advantage of inheritance in the .NET Framework to extend classes to make them generate code that is fully accessible to people with disabilities. (13 printed pages) Contents Introduction The WAI, WCAG, and Section 508 Microsoft's Accessible Web Controls for Creating An Adaptive, Accessible DataGrid Web Control Using the Accessible DataGrid Column Classes in an Web Page Accessibility in Whidbey Related Books Introduction While the majority of online users are able to browse Web sites using Web browsers with the typical browser settings, users with monly use alternative means to access online information. For example, a blind user might use a text-only browser that converts the text into Braille, or reads the text aloud using a screen reader. A person with reduced vision might still use a browser like Microsoft® Explorer, but with a screen magnifier, or with the browser configured to use extra large font sizes. Motor disabilities might preclude a user from using the mouse or keyboard as an input device. Since people with disabilities typically surf the Web using special devices or non-standard browser configurations, a Web site's overall design and HTML markup greatly impacts the disabled person's user experience. For example, specifying font sizes using absolute measurements — like 10pt — displays the font in that absolute size, and not relative to the text size the user has configured in his browser. Sites that have a Flash or Shockwave interface, and donot provide an alternate, text representation, effectively cut off users with Braille devices or text-to-speech synthesizers. A Web site is said tobe accessible if it is designed to transition gracefully to alternate devices. At this point, you might be thinking, "Why should I bother ensuring my Web site is accessible?" There are two good