XML Schema group Element

Complete XML Schema Reference

Definition and Usage

The group element is used to define a group of elements to be used in complex type definitions.

Element Information

• Parent elements: schema, choice, sequence, complexType, restriction (both simpleContent and complexContent), extension (both simpleContent and complexContent)

Syntax

<group
id=ID
name=NCName
ref=QName
maxOccurs=nonNegativeInteger|unbounded
minOccurs=nonNegativeInteger
any attributes
>

(annotation?,(all|choice|sequence)?)

</group>

(The ? sign declares that the element can occur zero or one time inside the group element)

Example 1

The following example defines a group containing a sequence of four elements and uses the group element in a complex type definition:

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:group name="custGroup">
 <xs:sequence>
  <xs:element name="customer" type="xs:string"/>
  <xs:element name="orderdetails" type="xs:string"/>
  <xs:element name="billto" type="xs:string"/>
  <xs:element name="shipto" type="xs:string"/>
 </xs:sequence>
</xs:group>

<xs:element name="order" type="ordertype"/>

<xs:complexType name="ordertype">
  <xs:group ref="custGroup"/>
  <xs:attribute name="status" type="xs:string"/>
</xs:complexType>

</xs:schema>

Complete XML Schema Reference

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