[Mono-dev] XML validation : xsi:nil attribute ignored

[yproust]

Hi

I am trying to validate XML with an XSD schema, but it seems that the
xsi:nil attributes are ignored. As the element must be a dateTime,
validation fails on an empty element :

XmlSchema error: Invalidly typed data was specified. XML  Line 3, Position
31.

I am using Mono 2.2 under CentOS 5.2.
The validation fails through Monodevelop 2.0 Alpha 2 (1.9.1) with the same
error.

On the other hand, the XML is validated with Microsoft Visual Studio under
Windows XP.

Are there specific options to use in the code ? A specific namespace to use
in the XSD and/or XML ?

Thanks for your help


Here are the files I used to perform my tests :

XSD

<?xml version="1.0" encoding="utf-16"?>
<xs:schema xmlns="http://www.test.com" elementFormDefault="qualified"
targetNamespace="http://www.test.com"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="Message">
    <xs:complexType>
      <xs:all>
        <xs:element name="MyDateTime" nillable="true" type="xs:dateTime" />
      </xs:all>
    </xs:complexType>
  </xs:element>
</xs:schema>


Validated XML

<?xml version="1.0" encoding="utf-8"?>
<Message xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.test.com" xsi:schemaLocation="http://www.test.com
test.xsd">
	<MyDateTime>2009-01-23T12:00:00Z</MyDateTime>
</Message>


Not validated XML

<?xml version="1.0" encoding="utf-8"?>
<Message xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.test.com" xsi:schemaLocation="http://www.test.com
test.xsd">
	<MyDateTime xsi:nil="true"></MyDateTime>
</Message>


Code used to validate XML :

StreamReader reader = new StreamReader("test.xml");
string xml = reader.ReadToEnd();
string xsd = "/home/yproust/dev/test/test.xsd";

XmlReaderSettings settings = new XmlReaderSettings();
settings.ValidationEventHandler += delegate(object sender,
ValidationEventArgs e)
{
     throw new Exception("Error while validating message with xsd: " +
e.Message);
};


settings.ValidationType = ValidationType.Schema;
// Load the xsd
if( xsd != null )
     settings.Schemas.Add(null, new XmlTextReader(xsd));

StringReader stringReader = new StringReader(message);
try
{
     myXmlValidatingReader = XmlReader.Create(stringReader, settings);
     while (myXmlValidatingReader.Read()) { }
     myXmlValidatingReader.Close();
}
finally
{
     stringReader.Close();
}



Error when validation fails :

XmlSchema error: Invalidly typed data was specified. XML  Line 3, Position
31.






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