Assembly: PresentationFramework (in presentationframework.dll)
This method can raise an exception if called at a time when the logical tree is being iterated by another process.
Most FrameworkContentElement derived classes expose dedicated collections that are responsible for containment (for example, Inlines on the Span class; Blocks on the Section class). You can typically avoid any need to manipulate the logical tree directly if you derive from these classes instead. Working with the logical tree for content elements is an advanced scenario that may require a specialized parser or a specialized FrameworkElement that acts as the parent rendering element (content host).
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.