Validating xml string
The The usage of validation phases is a unique feature of ISO-Schematron and can be a very powerful tool e.g.
The sequence of steps to validate an XML document is given as follows: This article explained about the XML document, XSD schema, and how to validate XML document against XSD schema using Microsoft .
SAXException; public class XMLValidation Employee validates against Employee.xsd? true Exception: cvc-elt.1: Cannot find the declaration of element 'Employee'.
XML schema is supported in a similar way, but requires an explicit schema to be provided: As described above, the parser support for DTDs depends on internal or external subsets of the XML file.
This means that the XML file itself must either contain a DTD or must reference a DTD to make this work.
Apart from the built-in DTD support in parsers, lxml currently supports three schema languages: DTD, Relax NG and XML Schema.