Gets or sets a value that is used to render alternate text that notifies screen readers to skip the sidebar area's content.
Assembly: System.Web (in System.Web.dll)
Use the property to specify the alternate text for a hidden-image read by screen readers that will provide the ability to skip the sidebar area's content. The text that you specify provides assistive technology devices with a description of the hidden image that can be used to make the control more accessible.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.