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Introduktion til LINQ

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Niels Ladegaard Beck Microsoft Student Partner Aarhus Universitet. Introduktion til LINQ. Data != objekter. Objekt orienteret udvikling er en fornøjelse  Compileren informerer om fejl Breakpoints IntelliSense - det magiske punktum Brug af data er knap så stor en fornøjelse 

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niels ladegaard beck microsoft student partner aarhus universitet
Niels Ladegaard Beck

Microsoft Student Partner

Aarhus Universitet

Introduktion til LINQ

data objekter
Data != objekter
  • Objekt orienteret udvikling er en fornøjelse 
    • Compileren informerer om fejl
    • Breakpoints
    • IntelliSense - det magiske punktum
  • Brug af data er knap så stor en fornøjelse 
    • Ingen compiler der informerer om fejl
    • Ingen breakpoints
    • Ingen IntelliSence men blot strenge
    • Data er ikke stærkt typede
    • Fordele: Query sprog, deklarativt
slide3
LINQ
  • Query integreret i C# 3.0, VB.NET 9.0 - med tiden flere
  • Typestærkt, breakpoints, IntelliSense
  • LINQ to Objects
  • LINQ to 'relational' where 'relational' in ("SQL", "DataSets", "Entities")
  • LINQ to XML
3 ting du skal huske
3 ting du skal huske
  • Data == objekter
  • Imperative  declarative
  • Virker med objekter, relationelle data og XML
links
Links
  • Webcast om C# 3.0http://nlbeck.dk/WebcastAboutLINQAtMsdndk.aspx
  • Generelt om C# 3.0http://www.microsoft.com/danmark/msdn/guide/c3.mspx
  • Visual Studio 2008http://msdn.microsoft.com/vstudio/
  • Min bloghttp://nlbeck.dk
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