XML Schema all elements

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Complete XML Schema Reference

Definition and Usage

Element specifies that the child elements can appear in any order, each sub-element can occur zero or one time.

Element Information

Parent element: group, complexType, restriction (both simpleContent and complexContent), extension (both simpleContent and complexContent)

grammar

<all
id=ID
maxOccurs=1
minOccurs=0|1
any attributes
>

(annotation?,element*)

</all>

(? Sign declares that the element can occur zero or one time, and the * sign declares that the element can occur zero or more times in all elements.)

Attributes	description
id	Optional. The unique identifier of the element.
maxOccurs	Optional. The maximum number of times the element can occur. The value must be 1.
minOccurs	Optional. The minimum number of times the element can occur. This value can be an integer of 0 or 1. To specify that this element is optional, the attribute is set to 0. The default value is 1.
any attributes	Optional. It specifies any other attributes non-schema namespace.

Example 1

<xs:element name="person">
<xs:complexType>
<xs:all>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:all>
</xs:complexType>
</xs:element>

The example above indicates "firstname" and "lastname" elements can appear in any order, both elements must only appear once!

Example 2

<xs:element name="person">
<xs:complexType>
<xs:all minOccurs="0">
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:all>
</xs:complexType>
</xs:element>

The example above indicates "firstname" and "lastname" elements can appear in any order, each element can appear zero or one time!