attribute restriction [modified] [Solved]

[V 0]

I wrote a small .Net app that validates an XML with an XSD. It looks like it is working, until I did the following below. the XML is validated although the attribute is restricted to 8 chars. What could I be doing wrong? many thanks. [Solved] like this:

	public static void Validate(string xml\_file, string xsd\_file, string xmlnamespace){
		schemaexception = null;
		validationexception = null;
		XmlReader reader  = null;
		XmlReaderSettings xmlreadersettings = new XmlReaderSettings();
		XmlSchemaSet myschema = new XmlSchemaSet();
		try{
			xmlreadersettings.Schemas.Add(xmlnamespace, xsd\_file);
			xmlreadersettings.ValidationType = ValidationType.Schema;
			xmlreadersettings.ValidationEventHandler += new ValidationEventHandler(xmlreadersettings\_ValidationEventHandler);
			reader = XmlReader.Create(xml\_file, xmlreadersettings);
			while(reader.Read());
		}												//end try
		catch (XmlException XmlExp){
			schemaexception = XmlExp;
		}												//end catch
		catch(XmlSchemaException XmlSchExp){
			schemaexception = XmlSchExp;
		}												//end catch
		catch(Exception GenExp){
			schemaexception = GenExp;
		}												//end catch
		finally{
			reader.Close();
		}												//end finally
	}

[/Solved] [EDIT]I found an online tool dat also validates the xml against the xsd and that seems to work. it even says what the exact error is. I'll have to have a look at the .Net code. If anyone has a good article about it, let me know. (I'll also, of course, search for myself)[/EDIT] xml

<MyCode value="abcdefSSSgh"/>

xsd

          <xs:element name="MyCode" minOccurs="1">
            <xs:complexType>
              <xs:attribute name="value" use="required">
                <xs:simpleType> 
                  <xs:restriction base="xs:string"> 
                    <xs:length value="8"/> 
                  </xs:restriction> 
                </xs:simpleType>
              </xs:attribute>
            </xs:complexType>
          </xs:element>

.Net code

	public static Exception Validate(string xml\_file, string xsd\_file, string xmlnamespace){
		Exception xmlexception = null;
		XmlReader reader  = null;
		XmlSchemaSet myschema = new XmlSchemaSet();
		try{
			reader = XmlReader.Create(xml\_file);
			myschema.Add(xmlnamespace, xsd\_file);
			reade