Schema for Transparent Xml Tags

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schema

Hello!

I am working on a xml schema for a custom xml based template system. Similar to XSL, control statements like "foreach" or "if" are supported.

But I got stuck to make the following xml snippet valid:

<html:table
      xmlns="http://www.my-site.com/xsd/template/control/1.0"
      xmlns:html="http://www.w3.org/1999/xhtml">
  <foreach var="row" in="rows">
    <html:tr>[...]</html:tr>
  </foreach>
</html:table>

As defined in the XHTML schema, no other children than "tr" (and some others) are allowed for the table element.
But how can I define the "foreach" element as "transparent" in my custom schema, so that the document will be valid?

I have already discovered a XML schema for XSL[^], but even after copying the relevant parts (the for-each element and its dependencies) it does not work (Visual Studio still complains: The element 'table' in namespace 'http://www.w3.org/1999/xhtml' has invalid child element 'foreach' in namespace 'http://www.my-site.com/xsd/template/control/1.0'. List of possible elements expected: 'caption, col, colgroup, thead, tfoot, tbody, tr' in namespace 'http://www.w3.org/1999/xhtml').

My current schema can be found here.

Thanks in advance and in hope there is a solution,
Henning