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Schema validation and order of elements

I have a problem for validation an XML document using a schema. In fact, i've got an element that contain other elements. But the order of those elements is not important.
How should i build the schema ?
0
jguy
Asked:
jguy
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1 Solution
 
sdussingerCommented:
Try using xsd:all to define your container:

<xsd:complexType name="container">
  <xsd:all>
    <xsd:element name="anelement" type="xsd:string/>
    <xsd:element name="anotherelement" type="xsd:string"/>
  </xsd:all>
</xsd:complexType>

This would allow you to write containers as follows:

<container>
  <anelement>An Element</anelement>
  <anotherelement>Another Element></anotherelement>
</container>

 -or -

<container>
  <anotherelement>Another Element</anotherelement>
  <anelement>An Element</anelement>
</container>

HTH

--Steve
0
 
sdussingerCommented:
The xsd:all solution works fine as long as all of the elements in the container occur once and only once (in any order). If some of the elements in the container are optional or may occur more than once, you can use this:

 <xsd:complexType name="container">
   <xsd:sequence>
    <xsd:choice maxOccurs="unbounded">
      <xsd:element name = "anelement" type="xsd:string"/>
      <xsd:element name = "anotherelement" type="xsd:string"/>
    </xsd:choice>
  </xsd:sequence>
 </xsd:complexType>

HTH

--Steve
0
 
jguyAuthor Commented:
ok

But what happen, my complex type inherite from an other complex type. The probleme that i have is that the elements defined in de inherited complexe type must be before the new elements.

Thanks
0
 
sdussingerCommented:
<xsd:complexType name="derivedContainer">
  <xsd:complexContent>
    <xsd:extension base="baseContainer">
      <xsd:sequence>
        <xsd:choice maxOccurs="unbounded">
          <xsd:element name="anelement" type="xsd:string"/>
          <xsd:element name="anotherelement" type="xsd:string"/>
        </xsd:choice>
      </xsd:sequence>
    </xsd:extension>
  </xsd:complexContent>
</xsd:complexType>

HTH

--Steve
0

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