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.NET Framework 4.5
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System.Xml Namespaces
System.Xml
ConformanceLevel Enumeration
DtdProcessing Enumeration
EntityHandling Enumeration
Formatting Enumeration
IApplicationResourceStreamResolver Interface
IFragmentCapableXmlDictionaryWriter Interface
IHasXmlNode Interface
IStreamProvider Interface
IXmlBinaryReaderInitializer Interface
IXmlBinaryWriterInitializer Interface
IXmlDictionary Interface
IXmlLineInfo Interface
IXmlMtomReaderInitializer Interface
IXmlMtomWriterInitializer Interface
IXmlNamespaceResolver Interface
IXmlTextReaderInitializer Interface
IXmlTextWriterInitializer Interface
NamespaceHandling Enumeration
NameTable Class
NewLineHandling Enumeration
OnXmlDictionaryReaderClose Delegate
ReadState Enumeration
UniqueId Class
ValidationType Enumeration
WhitespaceHandling Enumeration
WriteState Enumeration
XmlAttribute Class
XmlAttributeCollection Class
XmlBinaryReaderSession Class
XmlBinaryWriterSession Class
XmlCDataSection Class
XmlCharacterData Class
XmlComment Class
XmlConvert Class
XmlDataDocument Class
XmlDateTimeSerializationMode Enumeration
XmlDeclaration Class
XmlDictionary Class
XmlDictionaryReader Class
XmlDictionaryReaderQuotas Class
XmlDictionaryReaderQuotaTypes Enumeration
XmlDictionaryString Class
XmlDictionaryWriter Class
XmlDocument Class
XmlDocumentFragment Class
XmlDocumentType Class
XmlElement Class
XmlEntity Class
XmlEntityReference Class
XmlException Class
XmlImplementation Class
XmlLinkedNode Class
XmlNamedNodeMap Class
XmlNamespaceManager Class
XmlNamespaceScope Enumeration
XmlNameTable Class
XmlNode Class
XmlNodeChangedAction Enumeration
XmlNodeChangedEventArgs Class
XmlNodeChangedEventHandler Delegate
XmlNodeList Class
XmlNodeOrder Enumeration
XmlNodeReader Class
XmlNodeType Enumeration
XmlNotation Class
XmlOutputMethod Enumeration
XmlParserContext Class
XmlProcessingInstruction Class
XmlQualifiedName Class
XmlReader Class
XmlReaderSettings Class
XmlResolver Class
XmlSecureResolver Class
XmlSignificantWhitespace Class
XmlSpace Enumeration
XmlText Class
XmlTextReader Class
XmlTextWriter Class
XmlTokenizedType Enumeration
XmlUrlResolver Class
XmlValidatingReader Class
XmlWhitespace Class
XmlWriter Class
XmlWriterSettings Class
XmlXapResolver Class
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DtdProcessing Enumeration

.NET Framework 4.5

Specifies the options for processing DTDs. The DtdProcessing enumeration is used by XmlReaderSettings.

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)
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public enum DtdProcessing
Member nameDescription
Supported by Portable Class LibrarySupported in .NET for Windows Store appsIgnoreCauses the DOCTYPE element to be ignored. No DTD processing occurs.
Important noteImportant

The DTD/DOCTYPE will be lost on output.

ParseUsed for parsing DTDs.
Supported by Portable Class LibrarySupported in .NET for Windows Store appsProhibitSpecifies that when a DTD is encountered, an XmlException is thrown with a message that states that DTDs are prohibited. This is the default behavior.

This enumeration is set on the DtdProcessing property or the DtdProcessing property. The DtdProcessing property replaces the ProhibitDTD property and adds the ability to ignore the DOCTYPE element.

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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