The <anyAttribute> element enables us to extend the XML document with attributes not specified by the schema!
The <anyAttribute> element enables us to extend the XML document with attributes not specified by the schema.
The following example is a fragment from an XML schema called "family.xsd". It shows a declaration for the "person" element. By using the <anyAttribute> element we can add any number of attributes to the "person" element:
Now we want to extend the "person" element with a "gender" attribute. In this case we can do so, even if the author of the schema above never declared any "gender" attribute.
Look at this schema file, called "attribute.xsd":
The XML file below (called "Myfamily.xml"), uses components from two different schemas; "family.xsd" and "attribute.xsd":
The XML file above is valid because the schema "family.xsd" allows us to add an attribute to the "person" element.
The <any> and <anyAttribute> elements are used to make EXTENSIBLE documents! They allow documents to contain additional elements that are not declared in the main XML schema.
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