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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


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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