Assembly: System.Web (in system.web.dll)
Return ValueA SiteMapNode that represents the top-level node in the current site map data structure.
The GetRootNodeCore method calls the BuildSiteMap method to retrieve the top-level node in the site map. Therefore, any exceptions that occur for the BuildSiteMap method can also occur when calling the GetRootNodeCore method.
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.