XML and Microsoft 'NET Saqib Rasool XML Framework Product Lead PSS WebData Team Microsoft Corporatio

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XML and Microsoft .NETSaqib RasoolXML
Framework Product LeadPSS WebData TeamMicrosoft
Corporation
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XML and .NET Discussion Outline

• Introduction to XML
• Mark up languages
• XML evolution and explanation
• XML in Microsoft .NET
• Current products
• .NET overview
• XML Parser in .NET
• Summary and QA

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Mark-up Languages

• Mark up is
• Adding meaning to text
• Changing format of text
• Example
• Saqib
• ltPresentergt Saqiblt/Presentergt
• ltBoldgtSaqiblt/Boldgt

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XML Born

• XML is a mark up that describes structure
• Acts as an integration protocol between
  applications
• Industry standard developed by W3C
• Microsofts goal is 100 percent adherence to XML
  standard

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XML Structure

• Two basic building blocks
• Elements
• Attributes
• Some others
• Declaration
• Root element
• Namespaces

lt?xml version"1.0" encoding"UTF-8" ?gt
ltBookStoregt ltBook category"reference"gt ltauthor
gtWilliam Pardi lt/authorgt lttitlegtXML in
Actionlt/titlegt ltpricegt24.95lt/pricegt lt/Bookgt
lt/BookStoregt
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Microsofts Current Support of XML

• MSXML Parser lives up to key industry standards
• Based on COM
• New .NET XML Managed Parser is modeled after
  MSXML Parser

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.NET and Web Services
Web Service
Web Service
XML
XML
XML
XML
Web Service
Web Service
Client
XML
HTML
Client
XML
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The .NET Framework
VB
C
C
Visual Studio .NET
JScript

Common Language Specification
ASP .NET Web Services and Web Forms
WindowsForms
ADO .NET Data and XML
Base Class Library
Common Language Runtime
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.NET XML Classes System.Xml Parser

• Non-cached parsing
• Cached (DOM) parsing

System.Xml namespace
XmlDocument
XmlTextReader
XmlTextWriter
XmlElement
XmlNavigator
XmlAttribute
and so on
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System.Xml Code Example Non-cached Forward Only
Parsing
Using System.Xml XmlReader reader reader new
XmlTextReader("MyFile.xml") while(reader.Read())
process nodes
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System.Xml Code Example In-memory DOM-style
Parsing
using System.Xml XmlDocument xmlDoc new
XmlDocument() xmlDoc.Load("myfile.xml") XmlNode
rootNode xmlDoc.DocumentElement XmlNodeList
oNodeList rootNode.ChildNodes for (int
i0iltoNodeList.Counti) ...process
nodes...
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XML and ADO .NET Unified Architecture
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Summary

• XML Industry standard interoperability
  mechanism between applications
• .NET Microsoft vision of the future of
  distributed applications
• XML is a glue that holds all .NET components
  together

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