XmlReaderSettings.DtdProcessing Property

The DtdProcessing enumeration contains the Prohibit, Ignore, and Parse enumerators. Prohibit is the default behavior. The DtdProcessing property replaces the ProhibitDTD property and adds the ability to ignore the DOCTYPE element. If you had set ProhibitDtd to its default value true set DtdProcessing to Prohibit. If you had set ProhibitDtd to false set DtdProcessing to Parse.

Important
If the DtdProcessing property is set to DtdProcessing.Ignore, the XmlReader will not report the DTDs. This means that the DTD/DOCTYPE will be lost on output.

.NET Framework

.NET Framework Client Profile

Portable Class Library

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

Reference