作者：Paul Kimmel
出版日期：July 24, 2008
出版社：Sams Publishing
页数：552
ISBN：ISBN-10: 0672329832 ISBN-13: 978-0672329838
文件格式：PDF

Product Description
Foreword by Darryl Hogan, Architect Evangelist, Microsoft Corporation

Microsoft’s highly anticipated LINQ query technology makes it easy to retrieve any information programmatically from anydata source, no matter where it comes from or how it’s stored. UsingLINQ, developers can query objects, relational databases, XMLdocuments, and ADO.NET datasets–and do it all directly from C# 3.0,leveraging the powerful capabilities of LINQ.

This is a definitive guide to getting real-world results with LINQ, using C# 3.0 and Visual Studio 2008. In LINQ Unleashed,Microsoft MVP Paul Kimmel covers every facet of LINQ programming,showing how LINQ can help you dramatically improve your productivityand build more reliable, maintainable applications.

Kimmel begins by reviewing thestate-of-the-art C# programming techniques LINQ uses, includinganonymous types, partial methods, and Lambda expressions. Next, usingrealistic examples and easy-to-adapt sample code, he details the mostpowerful new LINQ techniques for accessing objects, databases, and XML.You’ll gain a deep and practical understanding of how LINQ works “underthe hood”–and learn how to do everything from selecting data throughintegrating XML with other data models.

Build efficient LINQ queries to .NET objects, SQL databases, and XML contentUtilize anonymous types to reduce design time, coding effort, and debugging timeAutomatically generate .NET state machines with the new yield return constructMaster LINQ query syntax, operators, extension methods, sorting, grouping, aggregate and set operations, and moreMake the most of select–and use it in the business layer of your n-tier applicationsQuery relational data stored in Microsoft SQL ServerUse nullable types to eliminate unnecessary database access plumbing codeUse LINQ with ADO.NET 3.0 and Microsoft’s powerful new Entity FrameworkExtract XML data without the hassles or complexity of XPathAutomatically construct XML from CSV files and other non-XML dataQuery Active Directory by extending LINQIntroduction 1
Part I Getting Ready for LINQ
1 Programming with Anonymous Types 5
2 Using Compound Type Initialization 29
3 Defining Extension and Partial Methods 61
4 yield return: Using .NET’s State Machine Generator 85
5 Understanding Lambda Expressions and Closures 97
6 Using Standard Query Operators 121
Part II LINQ for Objects
7 Sorting and Grouping Queries 137
8 Using Aggregate Operations 151
9 Performing Set Operations 167
10 Mastering Select and SelectMany 185
11 Joining Query Results 211
12 Querying Outlook and Active Directory 239
Part III LINQ for Data
13 Querying Relational Data with LINQ 265
14 Creating Better Entities and Mapping Inheritance and Aggregation 289
15 Joining Database Tables with LINQ Queries 309
16 Updating Anonymous Relational Data 349
17 Introducing ADO.NET 3.0 and the Entity Framework 383
Part IV LINQ for XML
18 Extracting Data from XML 415
19 Comparing LINQ to XML with Other XML Technologies 437
20 Constructing XML from Non-XML Data 453
21 Emitting XML with the XmlWriter 463
22 Combining XML with Other Data Models 469
23 LINQ to XSD Supports Typed XML Programming 485
Index
About the Author
Paul Kimmel is a four-timeMicrosoft MVP, the author of over a dozen books on object orientedprogramming and UML, including three books on Microsoft .NET, acolumnist for codeguru.com, developer.com, informit.com, devsource.com,and devx.com, a cofounder of the Greater Lansing Area .NET Users Group(glugnet.org, East Lansing and Flint), a full-time software developer,and sometimes pilot. Paul still lives and works in the greater Lansing,Michigan, area (and hasn’t given up on the economy). After 15 years ofindependent consulting, Paul now works for EDS as an applicationarchitect.