How read XML schema with Primary Key?

[deskstar]

Hello.

I import a XML to a Dataset and works fine, import XML with Schema and fine to, but for any estrange reason the primary key that is in the XSD don't appears in the Dataset.

The XML and XSD are generated from a access 2003 table, right button and export.

This is my code

str1 = "C:\tbl1.xml"
str2 = "C:\tbl1.xsd"
ds.ReadXml(str2, XmlReadMode.ReadSchema)
ds.ReadXml(str1)

Any help?

Thanks.