Suneel Suresh wrote:
Code below returns null
DOMElement *domElement = parserDom->getDocument()->getElementById(
XMLString::transcode("75"));
parserDom is initialized as
parserDom = new XercesDOMParser();
parserDom->setValidationScheme(XercesDOMParser::Val_Always);
parserDom->setDoNamespaces(false);
//parserDom->setExternalSchemaLocation("http://www.w3schools.comrules.xsd";);
parserDom->setDoSchema(true);
parserDom->setValidationSchemaFullChecking(true);
-------------------------------------------------
xml snippet below
......
<Server xmlns="http://www.w3schools.com";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="
http://www.w3schools.com rules.xsd">
<AnElement id="75">
</Server>
"75" is not a valid ID in XML, because IDs must match the NCName grammar
production:
http://www.w3.org/TR/xmlschema-2/#NCName
----------------------------------
The xsd
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; targetNamespace="
http://www.w3schools.com"; xmlns="http://www.w3schools.com";
elementFormDefault="unqualified">
<xs:element name="AnElement ">
<xs:complexType>
<xs:attribute name="id" type="xs:NMTOKEN" use="required"/>
</xs:complexType>
</xs:element>
</xs:schema>
----------------------------------
i am using vc9 on winxp, with xerces-c-3.0.0-x86-windows-vc-9.0
Its really getting on my nerves why this simple api call is not working.
added to that the xerces tutorials are non existent.
There are many books and tutorials for XML available, so there's no need
for a Xerces-specific tutorial to explain how ID attributes work in XML.
Just giving an attribute the name "id" is not enough to make it an ID:
http://www.w3.org/TR/xmlschema-2/#ID
If you were to actually declare the attribute as type ID, you would get
a validation error:
<xs:element name="AnElement">
<xs:complexType>
<xs:attribute name="id" type="xs:ID" use="required"/>
</xs:complexType>
</xs:element>
Can anyone shine a light in this tunnel?
You can help save your nerves by understanding the technology you're using.
Dave
