sequence
Requires the elements in the group to appear in the specified sequence within the containing element.
<sequence id = ID maxOccurs = (nonNegativeInteger | unbounded) : 1 minOccurs = nonNegativeInteger : 1 {any attributes with non-schema Namespace}…> Content: (annotation?, (element | group | choice | sequence | any)*) </sequence>
Attributes
- id
- The ID of this element. The id value must be of type ID and be unique within the document containing this element.
Optional.
- maxOccurs
- The maximum number of times the sequence can occur. The value can be an integer greater than or equal to zero. To set no limit on the maximum number, use the string "unbounded".
Optional.
- minOccurs
- The minimum number of times the sequence can occur. The value can be an integer greater than or equal to zero. To specify that this sequence group is optional, set this attribute to zero.
Optional.
Element Information
Number of occurrences | One time within group; otherwise, unlimited. |
Parent elements | group, choice, sequence, complexType, restriction (simpleContent), extension (simpleContent), restriction (complexContent), extension (complexContent) |
Contents | annotation, any, choice, element, group, sequence |
Example
The following example shows an element (zooAnimals) that can have zero or more of the following elements, elephant, bear, giraffe, in the sequence element.
<xs:element name="zooAnimals"> <xs:complexType> <xs:sequence minOccurs="0" maxOccurs="unbounded"> <xs:element name="elephant"/> <xs:element name="bear"/> <xs:element name="giraffe"/> </xs:sequence> </xs:complexType> </xs:element>
See Also
XML Schema Reference (XSD) | XML Schema Elements
For more information, see the W3C XML Schema Part 1: Structures Recommendation at http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#element-sequence.