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<h1>XSD The <anyAttribute> Element</h1>
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<p class="intro">The <anyAttribute> element enables us to extend the
XML document with attributes not specified by the schema!</p>
<hr />
<h2>The <anyAttribute> Element</h2>
<p>The <anyAttribute> element enables us to extend the XML document with
attributes not
specified by the schema.</p>
<p>The following example is a fragment from an XML schema called "family.xsd".
It shows a declaration for the "person" element. By using the <anyAttribute> element we
can add any number of attributes to the "person" element:</p>
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<pre><xs:element name="person">
<xs:complexType>
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:sequence>
<xs:anyAttribute/>
</xs:complexType>
</xs:element></pre>
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<p>Now we want to extend the "person" element with a "gender" attribute. In this
case we can do so, even if the author of the schema above never declared any
"gender" attribute.</p>
<p>Look at this schema file, called "attribute.xsd":</p>
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<pre><?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.w3schools.com"
xmlns="http://www.w3schools.com"
elementFormDefault="qualified"></pre>
<pre><xs:attribute name="gender">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:pattern value="male|female"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute></pre>
<pre></xs:schema></pre>
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<p>The XML file below (called "Myfamily.xml"), uses components from
two different schemas; "family.xsd" and "attribute.xsd":</p>
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<td>
<pre><?xml version="1.0" encoding="ISO-8859-1"?></pre>
<pre><persons xmlns="http://www.microsoft.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:SchemaLocation="http://www.microsoft.com family.xsd
http://www.w3schools.com attribute.xsd"></pre>
<pre><person gender="female">
<firstname>Hege</firstname>
<lastname>Refsnes</lastname>
</person></pre>
<pre><person gender="male">
<firstname>Stale</firstname>
<lastname>Refsnes</lastname>
</person></pre>
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