validating xml defined by DTD - ignore node sequence

[aidancasey]

I want to bypass the dtd validation that child elements must appear in
a certain order ...

In a DTD child elements that are defined and seperated by commas they
must appear in the same sequence in an xml file in order for the xml to
be valid ...

eg if the dtd defines an element Parent with two child nodes
<!ELEMENT Parent (a, b)>

Then the following xml is valid

<Parent>
<a>data</a>
<b>data</b>
</Parent>

but the following xml

<Parent>
<b>data</b>
<a>data</a>
</Parent>

is invalid ...
Does anyone know of any ways to get around this issue ??? I have
developed an application that generates xml but the child nodes aren't
created in the same order as specified in the dtd and I want to
validate the xml document ...

I am currently using the XMLReader class to try to validate the xml
..Net framework 2.0

XmlReaderSettings settings = new XmlReaderSettings();
settings.ProhibitDtd = false;
settings.ValidationType = ValidationType.DTD;
settings.ValidationEventHandler += new
ValidationEventHandler(ValidationCallBack);
settings.CheckCharacters = false;
settings.DtdValidate = true;
settings.IgnoreValidationWarnings = true;

XmlReader reader = XmlReader.Create(_filename, settings);

while (reader.Read()) ;

Many Thanks

[Martin Honnen]

ai********@gmail.com wrote:

I have
developed an application that generates xml but the child nodes aren't
created in the same order as specified in the dtd and I want to
validate the xml document ...

A DTD defines a grammar for a class of XML documents and validation is
supposed to check that an XML document instance complies with the DTD.
What would be the point of validation if the validator would claim the
document is valid but anyone wanting to make some exceptions could do that?
You would need a different DTD or a schema tailored to your needs and
then you could validate against your schema.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

[pawel.pabich]

Thanks Martin for your remarks but the main question is still without
an answer. Is it possible to do this?

best regards

Gawel

[Martin Honnen]

pa**********@gmail.com wrote:

Thanks Martin for your remarks but the main question is still without
an answer. Is it possible to do this?

The answer was and is that validation against a DTD is well defined and
not designed to allow anyone to make exceptions. If you cannot create
XML complying with a DTD then there is nothing in the validation process
you can change to nevertheless get the result "valid". You need to write
your own schema then with the desired grammar/structure and validate
against that.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/