Initializes a new instance of a class derived from MarkupExtension.
Assembly: System.Xaml (in System.Xaml.dll)
The MarkupExtension abstract class does not hold any private values that require initialization.Notes to Inheritors
A functional markup extension should define its own public default constructor. Additionally, the markup extension should implement constructors that are appropriate for the extension's intended capabilities and markup usage. For more information, see Markup Extensions for XAML Overview.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.