Getting started with XSD validation with .NET
- by Rosarch
Here is my first attempt at validating XML with XSD.
The XML file to be validated:
<?xml version="1.0" encoding="utf-8" ?>
<config xmlns="Schemas" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="config.xsd">
<levelVariant>
<filePath>SampleVariant</filePath>
</levelVariant>
<levelVariant>
<filePath>LegendaryMode</filePath>
</levelVariant>
<levelVariant>
<filePath>AmazingMode</filePath>
</levelVariant>
</config>
The XSD, located in "Schemas/config.xsd" relative to the XML file to be validated:
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="config">
<xs:complexType>
<xs:sequence>
<xs:element name="levelVariant">
<xs:complexType>
<xs:sequence>
<xs:element name="filePath" type="xs:anyURI">
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
Right now, I just want to validate the XML file precisely as it appears currently. Once I understand this better, I'll expand more. Do I really need so many lines for something as simple as the XML file as it currently exists?
The validation code in C#:
public void SetURI(string uri)
{
XElement toValidate = XElement.Load(Path.Combine(PATH_TO_DATA_DIR, uri) + ".xml");
// begin confusion
// exception here
string schemaURI = toValidate.Attributes("xmlns").First().ToString()
+ toValidate.Attributes("xsi:noNamespaceSchemaLocation").First().ToString();
XmlSchemaSet schemas = new XmlSchemaSet();
schemas.Add(null, schemaURI);
XDocument toValidateDoc = new XDocument(toValidate);
toValidateDoc.Validate(schemas, null);
// end confusion
root = toValidate;
}
Running the above code gives this exception:
The ':' character, hexadecimal value 0x3A, cannot be included in a name.
Any illumination would be appreciated.
