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 InheritorsWhen 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 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.