Assembly: System.Web (in System.Web.dll)
This property is commonly used when you need to programmatically manipulate the header row, for example, when adding custom content. Any modification to the property must be performed after the GridView control has been rendered; otherwise, the GridView control will overwrite any changes.
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.