Mapping XML Data Types to CLR Types

The following table describes the default mapping between the XML data types and the common language runtime (CLR) types.

Note

The xs and the xdt prefixes are mapped to the https://www.w3.org/2001/XMLSchema and the https://www.w3.org/2003/05/xpath-datatypes namespace URIs respectively.

XML Type	CLR Type
xs:anyURI	Uri
xs:base64Binary	Byte[]
xs:boolean	Boolean
xs:byte	SByte
xs:date	DateTime
xs:dateTime	DateTime
xs:decimal	Decimal
xs:double	Double
xs:duration	TimeSpan
xs:ENTITIES	String[]
xs:ENTITY	String
xs:float	Single
xs:gDay	DateTime
xs:gMonthDay	DateTime
xs:gYear	DateTime
xs:gYearMonth	DateTime
xs:hexBinary	Byte[]
xs:ID	String
xs:IDREF	String
xs:IDREFS	String[]
xs:int	Int32
xs:integer	Decimal
xs:language	String
xs:long	Int64
xs:gMonth	DateTime
xs:Name	String
xs:NCName	String
xs:negativeInteger	Decimal
xs:NMTOKEN	String
xs:NMTOKENS	String[]
xs:nonNegativeInteger	Decimal
xs:nonPositiveInteger	Decimal
xs:normalizedString	String
xs:NOTATION	XmlQualifiedName
xs:positiveInteger	Decimal
xs:QName	XmlQualifiedName
xs:short	Int16
xs:string	String
xs:time	DateTime
xs:token	String
xs:unsignedByte	Byte
xs:unsignedInt	UInt32
xs:unsignedLong	UInt64
xs:unsignedShort	UInt16
xdt:dayTimeDuration	TimeSpan
xdt:yearMonthDuration	TimeSpan
xdt:untypedAtomic	String
xdt:anyAtomicType	Object
xs:anySimpleType	String
Document node	XPathNavigator
Element node	XPathNavigator
Attribute node	XPathNavigator
Namespace node	XPathNavigator
Text node	XPathNavigator
Comment node	XPathNavigator
Processing instruction node	XPathNavigator

See also

• Type Support in the System.Xml Classes