The System.Xml.Schema.ValidationEventHandler that receives schema validation warnings and errors encountered during schema validation.
If no System.Xml.Schema.ValidationEventHandler is specified, an System.Xml.Schema.XmlSchemaValidationException is thrown for all schema validation errors with an System.Xml.Schema.XmlSeverityType value of XmlSeverityType.Error. An System.Xml.Schema.XmlSchemaValidationException is not thrown for validation warnings with an System.Xml.Schema.XmlSeverityType value of XmlSeverityType.Warning.