& XSLT PS: try to find me at XML2006, and we'll talk about the problem.

Michael Kay 

>  -----Original Message-----
>  From: Angela Williams [mailto:Angela.Williams@[...].com] 
>  Sent: 28 November 2006 18:01
>  To: xsl-list@[...].com
>  Subject: [xsl] Simulate schema-awareness to create comboBoxes
>  
>  Hello - 
>  
>  I need some advice, please.  I have a multi-step problem and 
>  am not sure the best direction to take. I've tried a few 
>  different options, but surely someone has already solved this 
>  more elegantly than what I am doing.... I am attending 
>  <XML2006> and thought I could wait, but need to come up with 
>  something before then...
>  
>  Step 1: I need the global elements in a schema to be 
>  represented as options in comboBoxes on a JSF page.  
>  
>  Step 2: I need to compare the user choices (in the instance 
>  document) against the schema to dynamically add or remove 
>  options from the comboBox according to the schema cardinality.
>  
>  I can write a stylesheet to parse the schema to provide the 
>  lists, but that just gives me a superset and doesn't account 
>  for cardinality. And I would still have to continue to 
>  compare the instance doc against the parsed schema to update 
>  the comboBoxes as the user makes choices.
>  
>  I'm using W3C XML Schema, XSLT 2.0, XPath 2.0 and Saxon8.  We 
>  have a license for SaxonSA, but it either doesn't offer the 
>  type of functionality I need or I just didn't recognize it.  
>  
>  Schema:
>  <?xml version="1.0" encoding="UTF-8"?>
>  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
>  
>    <xs:element name="root">
>      <xs:complexType>
>        <xs:sequence>
>          <xs:element ref="Item-A" minOccurs="0" maxOccurs="1" />
>          <xs:element ref="Item-B" minOccurs="1" 
>  maxOccurs="unbounded" />
>        </xs:sequence>
>      </xs:complexType>
>    </xs:element>
>              
>    <xs:element name="Item-A" type="a-type"/>
>    <xs:element name="Item-B" type="b-type"/>
>              
>    <xs:complexType name="a-type"/>
>    <xs:complexType name="b-type"/>
>                          
>  </xs:schema>
>  
>  Instance 1 > Only option should be 'Item-B':
>  <?xml version="1.0" encoding="UTF-8"?>
>  <root>
>     <Item-A/>       
>  </root>
>  
>  Instance 2 > Options should be 'Item-A' and 'Item-B':
>  <?xml version="1.0" encoding="UTF-8"?>
>  <root>
>     <Item-B/>       
>  </root>
>  
>  If someone could point me in the right direction, I would 
>  greatly appreciate it!
>  
>  Thanks!
>  Angela Williams
>  Channel Developer
>  The 401k Company
>  512-344-1547
>    
>  
>  
>  
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