Recommended Reading:
xsd:IDREF
The type xsd:IDREF is used for an attribute that references an ID. All attributes of type xsd:IDREF must reference an xsd:ID in the same XML document. A common use case for xsd:IDREF is to create a cross-reference to a particular section of a document. Like xsd:IDREF value must be an
Simple Type Information
Namespace: http://www.w3.org/2001/XMLSchema
Schema Document: builtintypes.xsd
Content
- Based on xsd:NCName
- Pattern: [\i-[:]][\c-[:]]* (Defined in type xsd:NCName)
- White Space: collapse (Defined in type xsd:token)