Load an XSD and expand include and import elements

[=?Utf-8?B?dG9ueSBsb2Nr?=]

How do I read in an XSD file that includes and imports lots of other XSD
files, so that I can enumerate all the elements/attributes defined by the XSD.

[Martin Honnen]

tony lock wrote:

How do I read in an XSD file that includes and imports lots of other XSD
files, so that I can enumerate all the elements/attributes defined by the XSD.

Load the schema into an XmlSchemaSet:
http://msdn.microsoft.com/en-us/libr...maset.add.aspx
then use the properties/methods of the XmlSchemaSet to access the
elements/attributes/types defined.
--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

[Marc Gravell]

XmlSchemaSet can do this (see below); note that the set.XmlResolver needs to
be able to locate the related schemas, which is easiest if you start with
something like an XmlReader that knows where the file came from [in
contrast, say, to a MemoryStream] - but if you need to you can write your
own XmlResolver (I've written resolvers from resource files, databases,
etc).

XmlSchemaSet set = new XmlSchemaSet();
set.Add(XmlSchema.Read(XmlReader.Create("XMLSchema 1.xsd"), null));
set.Compile();
foreach (XmlSchemaType obj in set.GlobalTypes.Values)
{
Console.WriteLine("{0}: {1}", obj.Name, obj.SourceUri);
}

Marc

[=?Utf-8?B?dG9ueSBsb2Nr?=]

Thanks for that unfortunately when I do the compile I get an exception

The global attribute 'http://www.w3.org/XML/1998/namespace:lang' has already
been declared.

It appears all the xsd's which are being imported include imports of the
basic declarations. Is there any way to tell the XmlSchemaSet to ignore all
but the first definition of any element/attribute

"Marc Gravell" wrote:

XmlSchemaSet can do this (see below); note that the set.XmlResolver needs to
be able to locate the related schemas, which is easiest if you start with
something like an XmlReader that knows where the file came from [in
contrast, say, to a MemoryStream] - but if you need to you can write your
own XmlResolver (I've written resolvers from resource files, databases,
etc).

XmlSchemaSet set = new XmlSchemaSet();
set.Add(XmlSchema.Read(XmlReader.Create("XMLSchema 1.xsd"), null));
set.Compile();
foreach (XmlSchemaType obj in set.GlobalTypes.Values)
{
Console.WriteLine("{0}: {1}", obj.Name, obj.SourceUri);
}

Marc

[Pavel Minaev]

On Aug 19, 6:57*pm, tony lock <[e-mail]>
wrote:

Thanks for that unfortunately when I do the compile I get an exception

The global attribute 'http://www.w3.org/XML/1998/namespace:lang'has already
been declared.

It appears all the xsd's which are being imported include imports of the
basic declarations. Is there any way to tell the XmlSchemaSet to ignore all
but the first definition of any element/attribute

No. XmlSchemaSet only reads well-formed and valid XML Schema
declarations. If an .xsd file, after include expansion, ends up
defining several things twice, it's just not valid. If the schemas are
your own, you should consider fixing them.

[=?Utf-8?B?dG9ueSBsb2Nr?=]

Unfortunately they are not.

"Pavel Minaev" wrote:

On Aug 19, 6:57 pm, tony lock <[e-mail]>
wrote:

Thanks for that unfortunately when I do the compile I get an exception

The global attribute 'http://www.w3.org/XML/1998/namespace:lang'has already
been declared.

It appears all the xsd's which are being imported include imports of the
basic declarations. Is there any way to tell the XmlSchemaSet to ignore all
but the first definition of any element/attribute

No. XmlSchemaSet only reads well-formed and valid XML Schema
declarations. If an .xsd file, after include expansion, ends up
defining several things twice, it's just not valid. If the schemas are
your own, you should consider fixing them.