Re: [xml-dev] <all> and minOccurs="0" Problem

[Martin Gudgin <marting@develop.com>]

Hi Radek,

Try this;

<xsd:complexType name='someType'>
  <xsd:all>
    <xsd:element name='a' minOccurs='0' />
    <xsd:element name='b' />
    <xsd:element name='c' minOccurs='0' />
  </xsd:all>
</xsd:complexType>

This would allow an element to contain a, b and c children with the b child
being mandatory while a and c are optional. The elements can appear in any
order inside their parent.

Note that the default value for minOccurs ( and maxOccurs ) is 1.

Hope this helps,

Martin Gudgin
DevelopMentor
http://www.develop.co.uk

----- Original Message -----
From: "Radek Wisniewski" <rw@datenknecht.de>
To: <xml-dev@lists.xml.org>
Sent: Thursday, September 13, 2001 11:45 AM
Subject: [xml-dev] <all> and minOccurs="0" Problem


> Any particle of <all> construct may appear null or one time.
>
> How can I build valid XML Schema that allow to awoid some subelemnts?
>
> Simple deklaration:
>
> <complexType>
>  <all>
>   <element ...>
>    ...
>
> works not well, xerces claims if i avoid any of the subelemnts.
> There is an attribute <all minOccurs="0|1"> but I dont know how to use
> that and what it exactly mean in <all> element.
>
> I'v spent al lot of time but couldn't solve the problem, please give me
> any advice.
>
>
> Radek Wisniewski
> www.datenknecht.de
>
>
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