XML Schema group Element

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XML Schema Tutorial

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XML Schema group Element

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Complete XML Schema Reference Manual

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Definition and Usage

The group element is used to define a group of elements that can be used in a complex type definition.

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 ? symbol indicates that the element can occur zero or one time within the group element.)

Attribute	Description
id	Optional. Specifies a unique ID for the element.
name	Optional. Specifies the name of the group. The name must be an NCName (a name without colons) as defined in the XML Namespaces specification. This attribute is used only when the schema element is the parent element of the group element. In this case, the group is a model group used by the complexType, choice, and sequence elements. The name attribute and the ref attribute cannot appear at the same time.
ref	Optional. References the name of another group. The value of ref must be a QName. The ref can include a namespace prefix. The name attribute and the ref attribute cannot appear at the same time.
maxOccurs	Optional. Specifies the maximum number of times the group element can occur within the parent element. The value can be any non-negative integer. To specify no limit on the maximum number, use the string "unbounded". The default value is 1.
minOc