"Matthew" <matthew_glen_evans@hotmail.com> wrote in message
news:4f49e314.0408030751.2c6d08c0@posting.google.com...
> I have implemented the xmlSchemaCollection object to cache commonly
> used schemas, as follows:
>
>

>
> public void SchemaValidate(XmlDocument xmlDoc, string schemaURI,
> string urnNamespace)
> {
>
>
> if (!m_SchemaCollection.Contains(urnNamespace))
> {
> //add new schema to collection cache if appropriate
> m_SchemaCollection.Add(urnNamespace,schemaURI);
> }
>
> //set up validating reader
> XmlValidatingReader reader = new XmlValidatingReader(
> xmlDoc.OuterXml,
> XmlNodeType.Document,
> null);
>
> reader.Namespaces = true;
> reader.Schemas.Add(m_SchemaCollection);
> reader.ValidationType = ValidationType.Schema;
>
> ValidationEventHandler EvtHandler = new
> ValidationEventHandler(this.ValidationCallBack);
> reader.ValidationEventHandler += EvtHandler;
>
> while (reader.Read())
> {
> //iterate entire document,building up XML Doc of ValidationErrors
> }
>
>
> if (m_ValErrorsXmlDoc.HasChildNodes)
> {
> #if DEBUG
> m_ValErrorsXmlDoc.Save("C:\\temp\\debug\\SchemaValidationErrors.xml");
> #endif
> throw new Exception("Schema Validation Errors:" +
> Environment.NewLine + schemaURI + Environment.NewLine +
> m_ValErrorsXmlDoc.OuterXml);
> }
> }
>
>

>
> The caching seems to work fine, but I get validation errors on xs:any
> elements. The reader complains that elements contained are not
> declared..
> I suspect I will have problems with xs:choice elements too.
>
> Using the validating reader without the schema collection, the input
> validates OK .. ie. as follows:
>
>

>
> public XmlDocument SchemaValidate(string XML, string RulesSchema)
> {
>
> XmlValidatingReader reader = new XmlValidatingReader(
> XML,
> XmlNodeType.Document,
> null);
>
> XmlReader schemaReader = new XmlTextReader(RulesSchema);
>
> XmlSchema schema = XmlSchema.Read(schemaReader, new
> ValidationEventHandler(ValidationCallBack));
>
> reader.Schemas.Add(schema);
>
> while (reader.Read())
> {
> //iterate entire document,building up XML Doc of ValidationErrors
> }
>
> XmlDocument xml = new XmlDocument();
>
> xml.Load(reader);
> //xml.LoadXml(RulesXML);
>
> return xml;
> }
>

>
> I have a vague idea that this is related to serialization of the
> cached schemas? but am just guessing. I have spent a day on this
> already...
>
> Any help would be much appreciated.
>
> TIA
>
> Matt

"Priya Lakshminarayanan [MSFT]" <priyal@online.microsoft.com> wrote in message news:<410fd65f$1@news.microsoft.com>...
> Caching the XmlSchemaCollection and using this for validation should be no
> different than adding the schemas directly to the XmlValidatingReader except
> for an improvement in performance.
>
> Can you send the schema and the xml samples?
>
> Thanks,
> Priya
>
> "Matthew" <matthew_glen_evans@hotmail.com> wrote in message
> news:4f49e314.0408030751.2c6d08c0@posting.google.com...
> > I have implemented the xmlSchemaCollection object to cache commonly
> > used schemas, as follows:
> >
> >
> ============================================================================
> ===
> >
> > public void SchemaValidate(XmlDocument xmlDoc, string schemaURI,
> > string urnNamespace)
> > {
> >
> >
> > if (!m_SchemaCollection.Contains(urnNamespace))
> > {
> > //add new schema to collection cache if appropriate
> > m_SchemaCollection.Add(urnNamespace,schemaURI);
> > }
> >
> > //set up validating reader
> > XmlValidatingReader reader = new XmlValidatingReader(
> > xmlDoc.OuterXml,
> > XmlNodeType.Document,
> > null);
> >
> > reader.Namespaces = true;
> > reader.Schemas.Add(m_SchemaCollection);
> > reader.ValidationType = ValidationType.Schema;
> >
> > ValidationEventHandler EvtHandler = new
> > ValidationEventHandler(this.ValidationCallBack);
> > reader.ValidationEventHandler += EvtHandler;
> >
> > while (reader.Read())
> > {
> > //iterate entire document,building up XML Doc of ValidationErrors
> > }
> >
> >
> > if (m_ValErrorsXmlDoc.HasChildNodes)
> > {
> > #if DEBUG
> > m_ValErrorsXmlDoc.Save("C:\\temp\\debug\\SchemaValidationErrors.xml");
> > #endif
> > throw new Exception("Schema Validation Errors:" +
> > Environment.NewLine + schemaURI + Environment.NewLine +
> > m_ValErrorsXmlDoc.OuterXml);
> > }
> > }
> >
> >
> ============================================================================
> ===
> >
> > The caching seems to work fine, but I get validation errors on xs:any
> > elements. The reader complains that elements contained are not
> > declared..
> > I suspect I will have problems with xs:choice elements too.
> >
> > Using the validating reader without the schema collection, the input
> > validates OK .. ie. as follows:
> >
> >
> ============================================================================
> ===
> >
> > public XmlDocument SchemaValidate(string XML, string RulesSchema)
> > {
> >
> > XmlValidatingReader reader = new XmlValidatingReader(
> > XML,
> > XmlNodeType.Document,
> > null);
> >
> > XmlReader schemaReader = new XmlTextReader(RulesSchema);
> >
> > XmlSchema schema = XmlSchema.Read(schemaReader, new
> > ValidationEventHandler(ValidationCallBack));
> >
> > reader.Schemas.Add(schema);
> >
> > while (reader.Read())
> > {
> > //iterate entire document,building up XML Doc of ValidationErrors
> > }
> >
> > XmlDocument xml = new XmlDocument();
> >
> > xml.Load(reader);
> > //xml.LoadXml(RulesXML);
> >
> > return xml;
> > }
> >
> ============================================================================
> ===
> >
> > I have a vague idea that this is related to serialization of the
> > cached schemas? but am just guessing. I have spent a day on this
> > already...
> >
> > Any help would be much appreciated.
> >
> > TIA
> >