XSD SchemaLesson 95Free preview

XSD <anyAttribute>

This lesson is part of XML · All levels

Summary

<xs:anyAttribute> allows for additional attributes that are not declared in the scheme, so that the data can carry developer-owned extensible metadata. Like xs:any, it is placed inside <xs:complexType> and controlled by the namespace and processContents attributes. Without the xs:anyAttributes, an unknown attribute is enough to invalidate a document.

Key points

<xs:anyAttribute> is inside <xs:complexType>, usually after another attribute
Namespace="##other" receives attributes from the namespace other than the target
ProcessContents="skip" misses the examination for additional attributes
Attributes without prefixes are derived from the local namespace of the document (##local)
Without a wildcard, every attribute must be declared in the scheme

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