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   RE: [xml-dev] What's wrong w/ nested elements?

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  • To: "Jain, Rajnish" <rjain@xl.com>,<xml-dev@lists.xml.org>
  • Subject: RE: [xml-dev] What's wrong w/ nested elements?
  • From: "Dare Obasanjo" <dareo@microsoft.com>
  • Date: Mon, 7 Jun 2004 10:13:59 -0700
  • Thread-index: AcRMjAheaP707llBQmCicDgGo4k9NQAJfNuQ
  • Thread-topic: [xml-dev] What's wrong w/ nested elements?

Title: What's wrong w/ nested elements?
The Visual Studio.NET 2002 & 2003 XML schema designers use the System.Data.DataSet class as the data structure when designing schemas. A limitation of the DataSet is that it cannot represent schemas which it cannot map to relational structures. Your best bet is to avoid using Visual Studio.NET as your XML schema designer and use whatever XML editor you currently favor.

If two wrongs don't make a right, try three.      

This posting is provided "AS IS" with no warranties, and confers no rights.


From: Jain, Rajnish [mailto:rjain@xl.com]
Sent: Monday, June 07, 2004 5:36 AM
To: xml-dev@lists.xml.org
Subject: [xml-dev] What's wrong w/ nested elements?


The following example shows the same element (b) contained inside elements (a1) and (a2).


When I try to create an XSD for this XML using Microsoft Development Environment 7.1, I get
the following error:

Failed to Create a schema for this data file because:
Although this XML document is well formed, it contains structure that Data View cannot display.
The same table (b) cannot be the child table in two nested relations.

Wondering why the containment relationship shown above is not valid for an XSD? And what can
I do to workaround this problem (I can't afford to name mangle (b) everywhere it appears).

Rajnish Jain



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