Subject: Re: [xsl] Either-Or Constraint From: Oleg Tkachenko <olegt@xxxxxxxxxxxxx> Date: Mon, 10 Mar 2003 09:54:07 +0200 |
So what about xs:choise then?I would like to enforce a constraint that an element must have one and/or the other of two child elements. That is, the two child elements are both 0..unbounded, but one or the other must be present.
To put it another way, if B is absent, A must be present, but if B is present, A is optional.
<xs:choice> <xs:element name="A" type="xs:string" maxOccurs="unbounded"/> <xs:element name="B" type="xs:string" maxOccurs="unbounded"/> </xs:choice>
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