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Introduktion til LINQ

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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Introduktion til LINQ

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  1. Niels Ladegaard Beck Microsoft Student Partner Aarhus Universitet Introduktion til LINQ

  2. 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

  3. 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

  4. DEMO

  5. 3 ting du skal huske • Data == objekter • Imperative  declarative • Virker med objekter, relationelle data og XML

  6. 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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