Hi Mirko,
just a little question, although I hope someone else will answer more
competently to your problem:
are you sure you connected the XML-file properly with the Schema file, i.e.
does the DOM-Parser have the ability to utilize the information given in the
Schema? This doesn't show in your example code.
getElementsById can be used if and only if the parser knows about the
Schema, otherwise he has no idea of ID-type-attributes.
Best regards,
Denny
----- Original Message -----
From: "Mirko Braun" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 11, 2003 10:49 AM
Subject: problem with getElementById()
>
> Hi to all,
>
> i,m using the Xerces 2.3.0 to parse an XML-Document validating against a
> Schema.
> When using the method getElementById() to get a node referenced by an
IDREF
> (see code below)
> a NULL-Pointer is given back. I'm sure that the ID is unique within the
XML
> Document.
>
> Is their any special feature i have to set according to the use of Schema
> and Xerces?
>
> Can anybody help me? Thanks in advance.
>
> Mirko
>
>
>
>
>
> C++ code:
>
> xercesc::DOMNode* pToDOMNode = oRevision.GetDOMNode();
>
> xercesc::DOMNamedNodeMap* pToAttr = pToDOMNode->getAttributes();
>
> xercesc::DOMNode* pToAuthorRef =
> pToAttr->getNamedItem(xercesc::XMLString::transcode("AuthorRef"));
>
> xercesc::DOMDocument* pToDocument = pToAuthorRef->getOwnerDocument();
>
> xercesc::DOMElement* pToAuthor =
> pToDocument->getElementById(pToAuthorRef->getNodeValue());
>
>
> XML Document:
>
> ...
> <AUTHOR id='_1'>
> <SHORTNAME>Rz</SHORTNAME>
> ...
> </AUTHOR>
> ...
> <REVISION AuthorRef='_1'>
> ...
> </REVISION>
>
>
>
>
> XML Schema:
>
> <xs:element name="AUTHOR">
> <xs:complexType>
> <xs:sequence>
> <xs:element ref="SHORTNAME"/>
> ...
> </xs:sequence>
> <xs:attribute name="id" type="xs:ID" use="required"/>
> </xs:complexType>
> </xs:element>
> ...
> <xs:element name="REVISION">
> <xs:complexType>
> <xs:sequence>
> ...
> </xs:sequence>
> <xs:attribute name="AuthorRef" type="xs:IDREF" use="required"/>
> </xs:complexType>
> </xs:element>
> ____________________________________
>
> Mirko Braun
> Automotive Electronics Tools
> Softing AG
> Richard-Reitzner-Allee 6
> D-85540 Haar
> Tel: +49 (0) 89 / 456 56 - 465
> Fax: +49 (0) 89 / 456 56 - 499
> mailto:[EMAIL PROTECTED]
> http://www.softing.com
> ____________________________________
>
>
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