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 http://www.w3.org/2001/XMLSchema and the http://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:gMmonth | 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 |