Assembly: System.Runtime.Serialization (in system.runtime.serialization.dll)
The IgnoreExtensionDataObject property is used when the class to which a DataContractAttribute has been applied also implements the IExtensibleDataObject interface. In this case, the data added in a future version of the contract is ignored on read and write. For more information, see Forward Compatible Data Contracts.
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, 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.