XmlDocument.Load() throws XmlSchemaValidationException
- by Praetorian
Hi,
I'm trying to validate an XML document against a schema (which is embedded in my program as a resource). I got everything to work, so I tried to test for errors by adding a second sibling node in the XML at a location where the schema specifies maxOccurs="1". The problem is that my ValidationEventHandler is never getting called, also XmlDocument.Load() is throwing an XmlSchemaValidationException exception when I'd expected XmlDocument.Validate() to do that.
This is the code I have:
private void ValidateUserData( string xmlPath )
{
var resInfo = Application.GetResourceStream( new Uri( @"MySchema.xsd",
UriKind.Relative ) );
var schema = XmlSchema.Read( resInfo.Stream, SchemaValidationCallBack );
XmlSchemaSet schemaSet = new XmlSchemaSet();
schemaSet.Add( schema );
schemaSet.ValidationEventHandler += SchemaValidationCallBack;
XmlReaderSettings settings = new XmlReaderSettings();
settings.Schemas = schemaSet;
settings.ValidationType = ValidationType.Schema;
XmlDocument doc = new XmlDocument();
using( XmlReader reader = XmlReader.Create( xmlPath, settings ) ) {
doc.Load( reader ); // <-- This line throws an exception if XML is ill-formed
reader.Close();
}
doc.Validate( SchemaValidationCallBack );// <-- This is never reached
}
private void SchemaValidationCallBack( object sender, ValidationEventArgs e )
{
Console.WriteLine( "SchemaValidationCallBack: " + e.Message );
}
How do I get the callback to be called so I can handle validation errors?
Thanks for your help!
