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Contents > elementFormDefault - elements > elementFormDefault qualified for not-top-level elements, namespace non-null

elementFormDefault qualified for not-top-level elements, namespace non-null

XML Schema
Relax NG

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XML Schema keys: elementFormDefault
Relax NG keys: ns

1. XML Schema

Because the attribute "elementFormDefault" is set to "qualified", the child must be from the namespace "http://foo" (from the "targetNamespace").

Valid document

<root xsi:schemaLocation="http://foo correct_0.xsd" xmlns="http://foo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
<e1>Element 1</e1>
</root>

Invalid document
The following document is not valid.

<root xsi:schemaLocation="http://foo correct_0.xsd" xmlns="http://foo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
<e1 xmlns="">Element 1</e1>
</root>

Correct XML Schema (correct_0.xsd)

<xsd:schema targetNamespace="http://foo" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:foo="http://foo" >

  <xsd:element name="root">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="e1" type="xsd:string"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
</xsd:schema>

2. Relax NG

We can set the namespace for all elements using the "ns" attribute. The value is inherited and now all elements must be from the "http://foo" namespace.

Valid document

<root xmlns="http://foo" >
<e1>Element 1</e1>
</root>

Correct Relax NG schema (correctRelax_0.rng)