Calendar::UseAccessibleHeader Property
Gets or sets a value that indicates whether to render the table header <th> HTML element for the day headers instead of the table data <td> HTML element.
Assembly: System.Web (in System.Web.dll)
The table header <th> HTML element is used for day header cells by default. You can revert to the .NET Framework version 1.0 behavior of using <td> elements for day header cells by setting this property to false.
Note that changing this value can affect scripts that rely on the rendering behavior of the version 1.0 edition of this control. The use of the <th> element might also alter the visible rendering of the Calendar control in browsers by making the day header cells center-aligned and bold.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.