SiteMapProvider.CurrentNode Property
Assembly: System.Web (in system.web.dll)
The SiteMapResolve event is raised before attempting to retrieve a SiteMapNode object, to enable event subscribers to return an instance of the SiteMapNode class. If there are no event subscribers, the SiteMapProvider class calls the FindSiteMapNode method using the current HTTP context to retrieve a SiteMapNode that represents the currently requested page.
If the currently requested page does not correspond with a SiteMapNode, a null reference (Nothing in Visual Basic) is returned. If security trimming is enabled and the user is not permitted to access the SiteMapNode, a null reference (Nothing in Visual Basic) is returned.
The following code example demonstrates how to implement the CurrentNode property in a class that implements the abstract SiteMapProvider class.
This code example is part of a larger example provided for the SiteMapProvider class.
// Implement the CurrentNode property. public override SiteMapNode CurrentNode { get { string currentUrl = FindCurrentUrl(); // Find the SiteMapNode that represents the current page. SiteMapNode currentNode = FindSiteMapNode(currentUrl); return currentNode; } } // Implement the RootNode property. public override SiteMapNode RootNode { get { return rootNode; } }
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.