Using xmlvalidatingreader c are harry styles and alyssa dating

Now, what does this have to do with the Xml Text Reader class I discussed in so much detail in the last segment of this previous tutorial? You see, while the class does throw up errors if your XML document isn’t well-formed, it does not support validation against a DTD, XDR or XSD Schema.

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Now you may, as I did initially, question the rationale behind having a reader for such a specific requirement — after all, you can easily use the method and properties of the Xml Document object to parse the file.

But it’s important to remember that DOM parsing is a processor-intensive task; therefore, using an Xml Reader object (which is faster and not as resource-hungry as the regular DOM parser) can produce better results in some cases.

A valid document is one which, in addition to being well-formed, adheres to the rules laid out in a document type definition (DTD) or XML Schema.

By imposing some structure on an XML document, a DTD makes it possible for documents to conform to some standard rules, and for applications to avoid nasty surprises in the form of incompatible or invalid data.

DTDs and XML Schemas are essential when managing a large number of XML documents, as they immediately make it possible to apply a standard set of rules to different documents and thereby demand conformance to a common standard.

However, for smaller, simpler documents, a DTD can often be overkill, adding substantially to download and processing time.

In such situations, you’ll also need to know how you can use a DTD to validate an XML document instance.

Here’s the updated XML file — notice it now includes a reference to a DTD instead of an XML Schema:[code][/code]A close look at this file and you will see that it describes the structure of the XML document instance fairly well.

In such a scenario, it makes sense to use the Xml Node Reader object to read the contents of the node because of its speed and efficient performance. Take a look at an example that uses the Xml Node Reader object.[code] collection is an Xml Node object that can easily be used to create an instance of the Xml Node Reader object, the object that I’m interested in here.

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