2 Dare (xmlschema question)

[Alex Shirshov]

Hello, All!

It seems the bug
(http://groups.google.com/groups?hl=r...3b01c28a00%242
08bc860%2439ef2 ecf%40TKMSFTNGX A08&rnum=8&prev =/groups%3Fq%3Dsc hemaLocation%2
BXmlSchema%2B.N ET%26hl%3Dru%26 lr%3D%26ie%3DUT F-8%26selm%3Da53b 01c28a00%25242
08bc860%252439e f2ecf%2540TKMSF TNGXA08%26rnum% 3D8) wasn't fixed neither in
v1.1 nor in v2.0.

Here is exception

Unhandled Exception: System.Xml.Sche ma.XmlSchemaExc eption: Cannot resolve
schema Location attribute.
at Modile1.Validat ionSchemaCallBa ck(Object sender, ValidationEvent Args e)
at System.Xml.Sche ma.BaseProcesso r.SendValidatio nEvent(XmlSchem aException
e, XmlSeverityType severity)
at System.Xml.Sche ma.SchemaCollec tionPreprocesso r.LoadExternals (XmlSchema
schema, XmlSchemaCollec tion xsc)
at System.Xml.Sche ma.SchemaCollec tionPreprocesso r.Execute(XmlSc hema
schema, String targetNamespace , Boolean loadExternals, XmlSchemaCollec tion
xsc)
at System.Xml.Sche ma.XmlSchema.Co mpileSchema(Xml SchemaCollectio n xsc,
XmlResolver resolver, SchemaInfo schemaInfo, String ns,
ValidationEvent Handler validationEvent Handler, XmlNameTable nameTable,
Boolean CompileContentM odel)
at System.Xml.Sche ma.XmlSchema.Co mpile(Validatio nEventHandler
validationEvent Handler)

Moreover, new XmlSchemaSet class, i'm afraid, have the same bug. I must
explicitly add all included schemas via Add method to get it work.

What i want is automatic addition all included schemas into the schema set.

With best regards, Alex Shirshov.

[Priya Lakshminarayanan [MSFT]]

The XmlSchemaSet does use the baseUri of the main schema to locate its
imports and includes.

The problem might be related to how you add your main schema to the
XmlSchemaSet. If you add the main schema by using the overload that takes in
XmlReader and you created the XmlTextReader by passing in a stream (and did
not pass in the baseUri of the file)
then, the baseUri of the main schema would be string.Empty.

Stream fileStream = File.OpenRead(u rl);
XmlTextReader reader = new XmlTextReader(f ileStream);
XmlSchemaSet set = new XmlSchemaSet();
set.Add(null, reader);
Console.WriteLi ne(set.Count);

If the schema is loaded as shown above, the baseUri of the main schema is
string.Empty as XmlTextReader accepts baseUri only when the corresponding
overload is used.
XmlTextReader reader = new XmlTextReader(m ySchemaUrl, fileStream);

or add the schema to the set passing in the url directly.

Thanks,
Priya

"Alex Shirshov" <no****@mail.ru > wrote in message
news:Oy******** **********@TK2M SFTNGP09.phx.gb l...

Hello, All!

It seems the bug
(http://groups.google.com/groups?hl=r...3b01c28a00%242 08bc860%2439ef2 ecf%40TKMSFTNGX A08&rnum=8&prev =/groups%3Fq%3Dsc hemaLocation%2 BXmlSchema%2B.N ET%26hl%3Dru%26 lr%3D%26ie%3DUT F-8%26selm%3Da53b 01c28a00%25242 08bc860%252439e f2ecf%2540TKMSF TNGXA08%26rnum% 3D8) wasn't fixed neither in
v1.1 nor in v2.0.

Here is exception

Unhandled Exception: System.Xml.Sche ma.XmlSchemaExc eption: Cannot resolve
schema Location attribute.
at Modile1.Validat ionSchemaCallBa ck(Object sender, ValidationEvent Args e) at System.Xml.Sche ma.BaseProcesso r.SendValidatio nEvent(XmlSchem aException e, XmlSeverityType severity)
at System.Xml.Sche ma.SchemaCollec tionPreprocesso r.LoadExternals (XmlSchema schema, XmlSchemaCollec tion xsc)
at System.Xml.Sche ma.SchemaCollec tionPreprocesso r.Execute(XmlSc hema
schema, String targetNamespace , Boolean loadExternals, XmlSchemaCollec tion
xsc)
at System.Xml.Sche ma.XmlSchema.Co mpileSchema(Xml SchemaCollectio n xsc,
XmlResolver resolver, SchemaInfo schemaInfo, String ns,
ValidationEvent Handler validationEvent Handler, XmlNameTable nameTable,
Boolean CompileContentM odel)
at System.Xml.Sche ma.XmlSchema.Co mpile(Validatio nEventHandler
validationEvent Handler)

Moreover, new XmlSchemaSet class, i'm afraid, have the same bug. I must
explicitly add all included schemas via Add method to get it work.

What i want is automatic addition all included schemas into the schema set.
With best regards, Alex Shirshov.

[Alex Shirshov]

Hello, Priya!
You wrote on Fri, 23 Jul 2004 15:29:25 -0700:

PLM> The problem might be related to how you add your main schema to the
PLM> XmlSchemaSet. If you add the main schema by using the overload that
PLM> takes in XmlReader and you created the XmlTextReader by passing in a
PLM> stream (and did not pass in the baseUri of the file)
PLM> then, the baseUri of the main schema would be string.Empty.
[Sorry, skipped]

I'm loading schema in another way:

Dim rd As New IO.StreamReader (pathToSchema)
Dim _schema as Schema.XmlSchem a = Schema.XmlSchem a.Read(rd, AddressOf
ValidationSchem aCallBack)
Dim ss as new Schema.XmlSchem aSet
ss.Add(_schema)

SourceURI of the schema is string.empty in this case.

PLM> If the schema is loaded as shown above, the baseUri of the main schema
PLM> is string.Empty as XmlTextReader accepts baseUri only when the
PLM> corresponding overload is used.
PLM> XmlTextReader reader = new XmlTextReader(m ySchemaUrl, fileStream);

In other words, i have to load schema only via XmlTextReader! Great!

PLM> or add the schema to the set passing in the url directly.

What does xmlschema need for? I don't even compile it!

PLM> "Alex Shirshov" <no****@mail.ru > wrote in message
PLM> news:Oy******** **********@TK2M SFTNGP09.phx.gb l...
??>> Hello, All!
??>>
??>> It seems the bug
??>>
PLM> (http://groups.google.com/groups?hl=r...adm=a53b01c28a
PLM> 00%242
??>>
PLM> 08bc860%2439ef2 ecf%40TKMSFTNGX A08&rnum=8&prev =/groups%3Fq%3Dsc hemaLoca
PLM> tion%2
??>>
PLM> BXmlSchema%2B.N ET%26hl%3Dru%26 lr%3D%26ie%3DUT F-8%26selm%3Da53b 01c28a00
PLM> %25242
??>> 08bc860%252439e f2ecf%2540TKMSF TNGXA08%26rnum% 3D8) wasn't fixed neither
??>> in v1.1 nor in v2.0. Here is exception Unhandled Exception:
System.Xml.Sche ma.XmlSchemaExc eption: Cannot
??>> resolve schema Location attribute. at
??>> Modile1.Validat ionSchemaCallBa ck(Object sender, ValidationEvent Args
PLM> e)
??>> at
PLM> System.Xml.Sche ma.BaseProcesso r.SendValidatio nEvent(XmlSchem aException
??>> e, XmlSeverityType severity)
??>> at
PLM> System.Xml.Sche ma.SchemaCollec tionPreprocesso r.LoadExternals (XmlSchema
??>> schema, XmlSchemaCollec tion xsc)
??>> at System.Xml.Sche ma.SchemaCollec tionPreprocesso r.Execute(XmlSc hema
??>> schema, String targetNamespace , Boolean loadExternals,
??>> XmlSchemaCollec tion xsc) at
??>> System.Xml.Sche ma.XmlSchema.Co mpileSchema(Xml SchemaCollectio n
??>> xsc, XmlResolver resolver, SchemaInfo schemaInfo, String
??>> ns, ValidationEvent Handler validationEvent Handler, XmlNameTable
??>> nameTable, Boolean CompileContentM odel) at
??>> System.Xml.Sche ma.XmlSchema.Co mpile(Validatio nEventHandler validationE
??>> ventHandler) Moreover, new XmlSchemaSet class, i'm afraid, have the
??>> same bug. I must explicitly add all included schemas via Add method to
??>> get it work. What i want is automatic addition all included schemas
??>> into the schema
PLM> set.
??>>
??>> With best regards, Alex Shirshov.
??>>

With best regards, Alex Shirshov.