I am using an assertion in my XSD. <xs:assert> is not supporting in my visual studio.
<xs:assert test="count(event[@type='system']) = 1"/>
Assertion not supported in XSD
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1 Answers
xs:assert requires XSD 1.1; it is not supported in XSD 1.0.
See also
- XSD assert not recognised, which lists some products that do support XSD 1.1.
- Where to place an XSD 1.1 assert?
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