xml - How to force child element to have a value in XSD? -


i have xml (as example) segment called type within segment order. segment 1 many, have :

<order>   <type>1</type>   <type>2</type>   <type>3</type> </order>

now validation should be, there should segment type value 1 in segment order, if not, validation error should occur. tried validations, not correct result. has thought on how implement , if possible?

xsd 1.0

your constraint cannot expressed in xsd 1.0.

xsd 1.1

your constraint can expressed in xsd 1.1 using assertion state there @ least 1 type child of order has value of 1:

<?xml version="1.0" encoding="utf-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/xmlschema"            xmlns:vc="http://www.w3.org/2007/xmlschema-versioning"            vc:minversion="1.1">    <xs:element name="order">     <xs:complextype>       <xs:sequence>         <xs:element name="type" maxoccurs="unbounded" type="xs:integer"/>       </xs:sequence>       <xs:assert test="type = 1"/>     </xs:complextype>   </xs:element> </xs:schema>

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