This documentation is archived and is not being maintained.

SiteMapProvider.CurrentNode Property

Gets the SiteMapNode object that represents the currently requested page.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public Overridable ReadOnly Property CurrentNode As SiteMapNode

Property Value

Type: System.Web.SiteMapNode
A SiteMapNode that represents the currently requested page; otherwise, Nothing, if the SiteMapNode is not found or cannot be returned for the current user.

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, Nothing is returned. If security trimming is enabled and the user is not permitted to access the SiteMapNode, Nothing is returned.

TopicLocation
How to: Programmatically Modify Site-Map Nodes in MemoryBuilding ASP .NET Web Applications
How to: Programmatically Modify Site-Map Nodes in MemoryBuilding ASP .NET Web Applications

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 Overrides ReadOnly Property CurrentNode() As SiteMapNode
  Get
    Dim currentUrl As String = FindCurrentUrl()
    ' Find the SiteMapNode that represents the current page.
    Dim aCurrentNode As SiteMapNode = FindSiteMapNode(currentUrl)
    Return aCurrentNode
  End Get
End Property

' Implement the RootNode property.
Public Overrides ReadOnly Property RootNode() As SiteMapNode
  Get
    Return aRootNode
  End Get
End Property


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.
Show: