Embedded XSD files with includes

[Guest]

Hi,

(.NET 2.0)

I want to embed the XML schema files into my DLL. However, this schema is
"split" in several files, i.e., they use xs:include. Note that the include is
relative and contains only the name of the file, i.e., the fragments are
supposed to be in the same directory.

For simplicity, suppose we have a main schema "a.xsd", which includes
"b.xsd" and "c.xsd".

In my code, I add the main schema (that includes all others) using:

xmlSettings.Schemas.Add(SCL2006_NAMESPACE, new
XmlTextReader(Assembly.GetExecutingAssembly().GetManifestResourceStream("a.xsd"));

Now, when I open (validating) an instance file, using:
XmlReader.Create(new XmlTextReader(file, _nt), settings)

there is an exception saying that there is an undefined complex type. This
is because it did not read the included XSDs (b.xsd and c.xsd). How can I
ensure that it would do it?

I tried to solve the problem this way: I added to the xmlSettings.Schemas
all parts of the full schema, i.e, beside "a.xsd", "b.xsd" and "c.xsd".

Then, it works fine - up to a point. If the directory containing the
instance file contains as well one or all files constituting the schema, then
I get an exception that a simple type (from XSD "b.xsd") has already been
declared.

So it looks like it does process the schema files only when loading the
instance file, and looks for includes in the directory where the instance
file is. How can I avoid this behavior?

I've tried to add XmlSchema to the xmlSettings.Schemas, however this does
not solve the problem either...

Thanks for any help!

 

[Andreas Mueller]

Hi,

(.NET 2.0)

I want to embed the XML schema files into my DLL. However, this schema is
"split" in several files, i.e., they use xs:include. Note that the include is
relative and contains only the name of the file, i.e., the fragments are
supposed to be in the same directory.

For simplicity, suppose we have a main schema "a.xsd", which includes
"b.xsd" and "c.xsd".

In my code, I add the main schema (that includes all others) using:

xmlSettings.Schemas.Add(SCL2006_NAMESPACE, new
XmlTextReader(Assembly.GetExecutingAssembly().GetManifestResourceStream("a.xsd"));

Now, when I open (validating) an instance file, using:
XmlReader.Create(new XmlTextReader(file, _nt), settings)

there is an exception saying that there is an undefined complex type. This
is because it did not read the included XSDs (b.xsd and c.xsd). How can I
ensure that it would do it?

I tried to solve the problem this way: I added to the xmlSettings.Schemas
all parts of the full schema, i.e, beside "a.xsd", "b.xsd" and "c.xsd".

Then, it works fine - up to a point. If the directory containing the
instance file contains as well one or all files constituting the schema, then
I get an exception that a simple type (from XSD "b.xsd") has already been
declared.

So it looks like it does process the schema files only when loading the
instance file, and looks for includes in the directory where the instance
file is. How can I avoid this behavior?

I've tried to add XmlSchema to the xmlSettings.Schemas, however this does
not solve the problem either...

Thanks for any help!

AFAIK, you can't do this. The files are embedded resources, how should
the XmlReader know where to look? A solution would be to extract the
resources and put them on the hard disk, process them and delete the
files afterwards.

HTH,
Andy