w3schools
  
HOME HTML CSS XML JAVASCRIPT ASP PHP SQL MORE...   References Examples Forum About

XML Schema choice Element


XML Schema Reference Complete XML Schema Reference

Definition and Usage

XML Schema choice element allows only one of the elements contained in the <choice> declaration to be present within the containing element.

Element Information

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

Syntax

<choice
id=ID
maxOccurs=nonNegativeInteger|unbounded
minOccurs=nonNegativeInteger
any attributes
>

(annotation?,(element|group|choice|sequence|any)*)

</choice>

(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 choice element)

Attribute Description
id Optional. Specifies a unique ID for the element
maxOccurs Optional. Specifies the maximum number of times the choice element can occur in the parent element. The value can be any number >= 0, or if you want to set no limit on the maximum number, use the value "unbounded". Default value is 1
minOccurs Optional. Specifies the minimum number of times the choice element can occur in the parent the element. The value can be any number >= 0. Default value is 1
any attributes Optional. Specifies any other attributes with non-schema namespace

Example 1

<xs:element name="person">
  <xs:complexType>
    <xs:choice>
      <xs:element name="employee" type="employee"/>
      <xs:element name="member" type="member"/>
    </xs:choice>
  </xs:complexType>
</xs:element>

The example above defines an element named "person" which must contain either a "employee" element or a "member" element.


XML Schema Reference Complete XML Schema Reference

DreamTemplate


W3Schools Certification

W3Schools' Online Certification Program

The perfect solution for professionals who need to balance work, family, and career building.

More than 4000 certificates already issued!

The HTML Certificate documents your knowledge of HTML, XHTML, and CSS.

The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.

The XML Certificate documents your knowledge of XML, XML DOM and XSLT.

The ASP Certificate documents your knowledge of ASP, SQL, and ADO.

The PHP Certificate documents your knowledge of PHP and SQL (MySQL).

WEB HOSTING
Best Web Hosting
PHP MySQL Hosting
Top 10 Web Hosting
UK Reseller Hosting
Web Hosting
FREE Web Hosting
Top Web Hosting
Windows Hosting
WEB BUILDING
XML Editor – Free Trial!
FREE Flash Website
FREE Web Templates
FLIGHT TICKETS
Find the cheapest flight
to any destination now!
EDUCATION
US Web Design Schools
HTML Certification
JavaScript Certification
XML Certification
PHP Certification
ASP Certification
STATISTICS
Browser Statistics
Browser OS
Browser Display