SiteMapProvider::GetChildNodes Method
When overridden in a derived class, retrieves the child nodes of a specific SiteMapNode.
Assembly: System.Web (in System.Web.dll)
Parameters
- node
- Type: System.Web::SiteMapNode
The SiteMapNode for which to retrieve all child nodes.
Return Value
Type: System.Web::SiteMapNodeCollectionA read-only SiteMapNodeCollection that contains the immediate child nodes of the specified SiteMapNode; otherwise, nullptr or an empty collection, if no child nodes exist.
Classes that derive from the SiteMapProvider class must implement the abstract GetChildNodes method.
Notes to Inheritors:When overriding the GetChildNodes method in a derived class, be sure to perform security trimming on the child nodes and ensure that the returned collection is read-only. The collection contains only the immediate children of the specified node.
The following code example demonstrates how to implement the GetChildNodes method in a class that implements the abstract SiteMapProvider class. The SimpleTextSiteMapProvider stores the hierarchical parent/child relationships in one Hashtable object and all SiteMapNode objects in another. The GetChildNodes method performs a reverse-lookup using both ArrayList objects.
This code example is part of a larger example provided for the SiteMapProvider class.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.