SHARE THIS PAGE

Schema Tutorial

XSD HOME XSD Intro XSD Why Use XSD How To XSD <schema>

Simple Types

XSD Elements XSD Attributes XSD Restrictions

Complex Types

XSD Elements XSD Empty XSD Elements Only XSD Text Only XSD Mixed XSD Indicators XSD <any> XSD <anyAttribute> XSD Substitution XSD Example

Data Types

XSD String XSD Date XSD Numeric XSD Misc
XSD Editor XSD Summary

Schema References

XSD Reference XSD Validator

XML Schema attributeGroup Element

Complete XML Schema Reference

Definition and Usage

The attributeGroup element is used to group a set of attribute declarations so that they can be incorporated as a group into complex type definitions.

Element Information

Parent elements: attributeGroup, complexType, schema, restriction (both simpleContent and complexContent), extension (both simpleContent and complexContent)

Syntax

<attributeGroup
id=ID
name=NCName
ref=QName
any attributes
>

(annotation?),((attribute|attributeGroup)*,anyAttribute?))

</attributeGroup>

(The ? sign declares that the element can occur zero or one time, and the * sign declares that the element can occur zero or more times inside the attributeGroup element)

Attribute	Description
id	Optional. Specifies a unique ID for the element
name	Optional. Specifies the name of the attribute group. Name and ref attributes cannot both be present
ref	Optional. Specifies a reference to a named attribute group. Name and ref attributes cannot both be present
any attributes	Optional. Specifies any other attributes with non-schema namespace

Example 1

<xs:attributeGroup name="personattr">
  <xs:attribute name="attr1" type="string"/>
  <xs:attribute name="attr2" type="integer"/>
</xs:attributeGroup>

<xs:complexType name="person">
  <xs:attributeGroup ref="personattr"/>
</xs:complexType>

The example above defines an attribute group named "personattr" which is used in a complex type named "person".

Complete XML Schema Reference