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More About the Author
Product Description
Product Description
- LINQ Queries
- LINQ and the Standard Query Operators
- Programming with XLinq
- Querying XML with XLinq
- Mixing XML and other data models
- DLinq and Queries
- LINQ over datasets
- Interoperating with ADO.NET
- LINQ and ASP.NET
From the Back Cover
Are you ready to revolutionize the way you can work with data? This book shows you how to effectively utilize LINQ so that you can query XML, SQLdatabases, ADO.NET DataSets, and other data sources, and it also delvesdeeper into the technology to demonstrate how LINQ can dramatically improve your applications.
Database pro Scott Klein first examines LINQ and Visual Studio® 2008, the language–specific features that support LINQ, as well as LINQ queries and the LINQ standard query operators. He then shows you how to program with LINQ to XML with both C# and Visual Basic® and how to use LINQ to XML with other data models. Plus, he walks you through LINQ to SQL queries, advanced query concepts, LINQ to Entities, and LINQ to DataSets. All of this valuable insight will provide you with powerful new tools so that you can easily extend and access information in your databases.
What you will learn from this book
Features of Visual Studio 2008 and the .NET Framework that will help you better understand LINQ
The syntax to use when writing LINQ queries
The concepts, techniques, and programming fundamentals necessary to program with LINQ to XML
How to use LINQ to XML with Visual Basic .NET
All about LINQ to SQL queries and concepts
Ways to work with the DataContext class and entity objects
How to build applications using LINQ and associated LINQ providers
Who this book is for
This book is for developers who want to learn about LINQ and how it can benefit and enhance their applications.
Wrox Professional Guides are planned and written by working programmers to meet the real–world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.
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Customer Reviews
This will give anyone unfamiliar with Linq a good grounding and ability to use the online resources to go further.
One warning though: it is based on ASP.NET 3.5 and Visual Studio 2008. This is not as big a deal as it seems as the changes in .NET 4.0 are easy to assimilate after understanding the material in this book.
However, the editing of the book is absolutely terrible, particularly for one in the Wrox P2P series. There are numerous typos throughout the book, as well as areas where the content is simply wrong. For example, in one area (page 77), he describes a LINQ query as grouping by the last name, then displaying the first and middle names concatenated together, when in reality the code is grouping by the FIRST name and concatenating the middle and last together.
This might sound like I am nit-picking. However, when covering a topic like this where there are new and non-intuitive items (such as method syntax and lambda expressions) being discussed, it is critically important that the description of the example actually matches the example. Considering that the book rarely lists the syntax format itself, mismatches can lead to "learning" incorrect information.
Were the editing better, I would give this a solid 4 out of 5 stars.
Oh, on another note.. Be aware that this book was based on Beta releases.. Things have changed a little bit.
Scott also talks about LINQ to SQL - In my opinion majority of the book is about LINQ to SQL. In this subject he talks about different techniques that you can do with LINQ to SQL like for example LINQ to SQL Queries.
What I noticed is that he briefly metions about LINQ to Objects. LINQ to Objects allows .NET developers to write "queries" over collections of objects. Traditionally, working with collections of objects meant writing a lot of looping code using for loops or foreach loops to iterate through a list carrying out filtering using if statements, and some action like keeping a running sum of a total property. LINQ frees you from having to write looping code; it allows you to write queries that filter a list or calculate aggregate functions on elements in a collection as a set.
Overall, I think this book is a good reference for developers that want to get into LINQ to XML or LINQ to SQL.
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