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4126.  XML for Web Applications Using C#

Rev. 4.6


This comprehensive and practical four-day course builds skills in .NET’s XML processing APIs—chiefly parsing using XmlReader and the Document Object Model (DOM), writing XML streams using XmlWriter, transformations using XPath and XSLT, and the new LINQ to XML, all using the .NET Framework XML classes and the C# language. It also covers XML serialization according to XML Schema and the tight coupling between XML and ADO.NET. The course is intended for students with a working knowledge of XML who want to build XML Web applications or components using .NET and the C# language. Everything in the course adheres to W3C and .NET standards for highly portable code. Visual Studio 2014 with .NET 4.5.1 is used as the development environment.


The course includes extensive programming examples, a progressively developed case study, and several tools for manipulating XML documents. All source code is in C# and is provided with the course. A separate Lab Manual provides detailed instructions for laboratory exercises with console and Web Forms client programs. A parallel course, 4125, XML Programming Using C# and .NET, has lab exercises with console and Windows Forms client programs. The Student Guide and Lab Manual are bound together in a single volume.


Upon completion of this course the student will be equipped to program XML applications in .NET and understand which XML and .NET technologies to apply for the problem domain.




·         Understand the purpose of the .NET Framework XML classes

·         Parse XML data streams using XmlReader classes

·         Validate XML data streams that are described by a DTD or an XML Schema

·         Use the XmlWriter class to create XML data streams

·         Modify, create and delete information in an XML document using the Document Object Model (DOM) .NET classes.

·         Use XML Serialization to persist XML data

·         Acquire a working knowledge of the use of ADO.NET with XML

·         Use XPath to query for content in an XML document

·         Use the XPathNavigator class to parse and edit XML documents

·         Use XSLT to transform XML documents into text, HTML or other XML

·         Use Language Integrated Query (LINQ) to manipulate XML documents


Course Duration:  4 days


Prerequisites:  Ability to read and to write well-formed XML. A working knowledge of programming the .NET Framework using C#, including ASP.NET. A working knowledge of ADO.NET is recommended for the portion of the course dealing with ADO.NET and XML.


1.      .NET Framework XML Overview

XML in the .NET Framework

.NET XML Namespaces and Classes

.NET XmlReader and XmlWriter

.NET DOM Parser

XML Serialization


XPath and XSLT

Language Integrated Query and XML

XML and the Web


2.      Reading XML Streams in .NET

XML Document Streams

The XmlReader Class


Accessing Node Properties with the .NET XML Classes

Accessing Attribute Values

Traversing the XML Document

Catching XmlExceptions


3.      Validating XML Streams

Specifying Valid Documents with XML Schema and DTD

Using Visual Studio 2010 to Create Schemas

Validating XML with XmlReader

.NET Schema Object Model


4.      Writing XML Streams in .NET

The XmlWriter Class


WriteXXX Methods

XmlWriter States

Writing Elements          

Writing Attributes

Writing Namespaces


5.      The Document Object Model in .NET

Origins of the DOM

DOM Levels

DOM2 Structure

The XmlDocument Class

DOM Tree Model

DOM Interfaces

XmlDocument, XmlNode and XmlNodeList Classes

XmlElement and XmlText Classes

Finding Elements by Name

Walking the Child List

The XmlAttribute Class


6.      Manipulating XML Information with the DOM

Creating and Modifying Documents

Modifying Elements

Error Handling

Managing Children


Splitting Text and Normalizing

Modifying Attributes


7.      XML Serialization


What Is Not Serialized

Writing and Reading XML

Customizing XML Serialization

XML Schema and XSD

Creating Classes from Schemas

XML Serialization and Web Services


8.      XML and ADO.NET

Strong Coupling Between ADO.NET and XML

Rendering XML from a DataSet

Controlling XML Output

Reading XML into a DataSet

XML Schema and DataSets

Typed DataSets

Synchronizing DataSets and XML


9.      XPath

Addressing XML Content

XPath in XSLT

Tree Structure

XPath Expressions


Axis, Node Test, and Predicate


XPath Functions

XPath and .NET


Editing with XPathNavigator

10. Introduction to XSLT


Rule-Based Transformations


Producing Text, HTML, and XML



11. LINQ to XML

Language Integrated Query

Manipulating XML Documents in Memory with LINQ

LINQ Queries

Filtering, Ordering and Aggregation

Inserts, Deletes and Updates

LINQ Transformations


Appendix A. Zenith Courseware Case Study


Appendix B. Learning Resources



System Requirements


Required software is Visual Studio 2013. A combination of the free Visual Studio 2013 Express for Web plus Visual Studio 2013 Express for Windows Desktop may be used. The operating system should be Windows 7SP1 or more recent. See the appropriate course Setup Guide for details.


A good minimal hardware profile for this course would have a 1.8 GHz or equivalent CPU, 2 GB of RAM, and at least 10 GB of free disk space for tools installation and courseware.