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xmlxsdxsd-validation

XML validation to require an element if another is not provided - without XSD 1.1

Preferably without using XSD 1.1 - require an XML element if another is not provided and vice versa.

Say I have a Job element:

<Job>
  <Ref>""</JobReferenceId>
  <Title>""</JobTitle>
  <Type>""</Type>
  <Contract>""</Contract>
</Job>

Type should be a required element if Contract is not provided and Contract should be a required element if Type is not provided. Both shouldn't be provided together.

Can I do this without XSD 1.1?

Solution

  • Sounds like a straightforward xs:choice:

    xs:sequence
  xs:element name="Ref"
  xs:element name="Title"
  xs:choice
     xs:element name="Type"
     xs:element name="Contract"