Ghana live sex chat - Validating with xml schema
Apart from the built-in DTD support in parsers, lxml currently supports three schema languages: DTD, Relax NG and XML Schema.
All three provide identical APIs in lxml, represented by validator classes with the obvious names.
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.
Now that the program is ready to validate with an XML Schema definition, it is necessary only to ensure that the XML document is associated with (at least) one.
There are two ways to do that: , which stands for "XML Schema instance." The second line specifies the schema to use for elements in the document that do not have a namespace prefix-that is, for the elements you typically define in any simple, uncomplicated XML document.
The Validation Type property of the Xml Reader Settings object is set to to enforce validation of the XML document by the Create method of the Xml Reader object.
A Validation Event Handler is added to the Xml Reader Settings object to handle any Warning or Error events raised by errors found during the validation process of both the XML document and the schema.
To validate an XML document, construct an Xml Reader Settings object that contains an XML schema definition language (XSD) schema with which to validate the XML document. For more information on validating XML documents with LINQ to XML, see How to: Validate Using XSD. Validation Event Handler, New Validation Event Handler(Address Of books Settings Validation Event Handler) Dim books As Xml Reader = Xml Reader. Read() End While End Sub Shared Sub books Settings Validation Event Handler(By Val sender As Object, By Val e As Validation Event Args) If e.