Chapter 15 - Introduce to LINQ pot

Chapter 15. Introduction

to LINQ

Hoang Anh Viet

[email protected]

Hanoi University of Technology

1

Microsoft

Objectives

“LINQ allows you to build strongly typed query expressions,

which can be applied to a number of LINQ targets to

manipulate “data” in the broadest sense of the word.

Here, you will learn about LINQ to Objects, which allows

you to apply LINQ expressions to containers of data

(arrays, collections, custom types). This information will

serve you well when we examine how to apply LINQ

expressions to relational databases (via LINQ to ADO)

and XML documents.”

2

Microsoft

Roadmap

15.1 Understanding the Role of LINQ

15.2 A First Look at LINQ Query Expressions

15.3 LINQ and Generic Collections

15.4 LINQ and Nongeneric Collections

15.5 The Internal Representation of LINQ Query Operators

15.6 Investigating the C# LINQ Query Operators

3

Microsoft

15.1 The Role of LINQ

 The LINQ API is an attempt to provide a consistent,

symmetrical manner in which programmers can obtain

and manipulate “data” in the broad sense of the term

 LINQ Expressions Are Strongly Typed and Extendable

 The Core LINQ Assemblies

 System.Core.dll

 System.Data.Linq.dll

 System.Data.DataSetExtensions.dll

 System.Xml.Linq.dll

4