You can use several different formats to validate XML documents, including Document Type Definitions (DTDs), XML Data Reduced (XDR) schemas, and W3C XML (XSD) schemas. NET Framework provides support for each of these formats, XML schemas arguably provide the greatest power and flexibility in validating XML.
I'll assume you have a general feel for how DTDs and schemas are created as well as why they are used.
In this article, I'll show you how to write a reusable XML-validation class you can use to validate XML documents against DTDs as well as XDR and XSD schemas. NET application that requires XML document-validation capabilities.
Once I've gone over the details of the class (named Xml Validator), I'll show you how to plug it into the Xml Import Service Windows service - detailed in my previous article entitled Improve Data Exchange - to validate "dropped" XML documents. I'll start with a brief overview of the Xml Import Service Windows service's functionality here in case you haven't read my previous article.
I added all the schemas to the project, right clicked "Properties" and set them all to Embedded Resources.
When you request an embedded resource you need to ask for the file using the original file name as well as the namespace.
Because Xml Import Service runs as a Windows service, you can configure it to start automatically even if a user is not logged into the system.
Xtreme Data LANGUAGES: C# TECHNOLOGIES: XML Schemas | Windows Services Validate XML Data Feeds With XML Schemas Write a reusable XML validation class to validate XML documents against DTDs as well as XDR and XSD schemas.
By Dan Wahlin Validating XML is important any time the structure or data contained within an XML document must follow a predefined format for an application to use it.
The middle part of Figure 1 illustrates the SAX approach to parsing.
The downside of this approach is that keeping track of the current context of an element or attribute in a complex document can be difficult.