Chapter 1 - Introduction

Course Goals• Understand the new C# 3.0 language features – Motivation – Design Patterns – Pros and Cons • Understand the Language Integrated Query LINQ framework... Future Context• Vi

LINQ via C# 3.0

Chapter 1 – Introduction

• Working knowledge of Microsoft® Visual C#® 2.0

– Generics

– Anonymous methods

– Iterators (yield return)

• Working knowledge of the NET

Framework

– Collection classes

Course Goals

• Understand the new C# 3.0 language

features

– Motivation

– Design Patterns

– Pros and Cons

• Understand the Language Integrated

Query (LINQ) framework

Course Agenda

• Chapter 1 – Introduction

• Chapter 2 – C# 3.0 Language Features

• Chapter 3 – LINQ Query Operators

• Chapter 4 – LINQ to Objects

• Chapter 5 – LINQ to XML

• Chapter 6 – LINQ to SQL

• Chapter 7 – Beyond LINQ

LINQ in Context

• LINQ is supported by NET 3.5 and C# 3.0

2002/2003 2005 2006 2008

Microsoft

Visual

Studio®

2002/2003

Visual Studio

2005

Visual Studio

2005 + Extensions

Visual Studio 2008

C# 1.0 C# 2.0 C# 2.0 C# 3.0

.NET 1.0/1.1 NET 2.0 NET 3.0 .NET 3.5

CLR 1.0 CLR 2.0 CLR 2.0 CLR 2.0 SP1

Latest Framework Developments

• NET 3.0

– Windows® Communication Foundation (WCF)

– Windows Presentation Foundation (WPF)

– Windows Workflow Foundation (WF)

• NET 3.5

– LINQ

– Managed Add-In Framework

– WPF Enhancements

Future Context

• Visual Studio 2008 and NET 3.5 SP1

– Currently in Beta 1: http://tinyurl.com/4xupp8

• ADO.NET Entity Framework

• ADO.NET Data Services

• MFC Feature Pack and TR1

• Performance Improvements

• Bug Fixes

Why LINQ

? Why LINQ

?

• Data != Objects

• State-of-the-art tooling has perfected OO methodologies

• The next challenge:

information, while abstracting away its source