add unique restriction on string in xml schema

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Hello all,

Supposed I have this code :

XML

<attribute name="id" use="required">
  <simpleType>
    <restriction base="ID"/>
  </simpleType>
</attribute>

With ID as a basis I can only enter a valid name(NCName) as value. (ex. id01)

Is there any way to add unique restriction on a string in xml schema so I could insert invalid values who do not fit the valid name? (ex. 01id)

Posted 31-Oct-11 21:05pm

Agus Syahputra

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Mehdi Gholam 1-Nov-11 4:13am

XML is a data format, it does not understand "restrictions" that is up to the XML parsers and handlers.

Agus Syahputra 1-Nov-11 4:22am

do you understand xml schema?

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-11-01T05:44:00

Solution 1

You're doing it wrong: "ID" is not an XSD type. Look at the code samples in this chapter: http://www.w3schools.com/schema/el_restriction.asp[^]; it will give you right idea.

—SA

Posted 1-Nov-11 5:44am

Sergey Alexandrovich Kryukov