WCF Multi-tier Services Development with LINQ

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  • Create, host, and consume your first WCF service in just a few minutes
  • Explore and learn different hosting and debugging options for a WCF service
  • Build a multi-tier real-world WCF service from scratch to understand every layer of a WCF service and apply it to your real work
  • Add exception handling to your WCF services
  • Accelerate your WCF service development with Service Factory by applying best practices
  • Understand basic and advanced concepts and features of LINQ and LINQ to SQL
  • Communicate securely and reliably with databases by rewriting the data access layer of your WCF service with LINQ to SQL
  • Control concurrent updates to the databases and add distributed transaction support to your WCF services

WCF is Microsoft's unified programming model for building service-oriented applications. It enables developers to build secure, reliable, transacted solutions that integrate across platforms and interoperate with existing investments. WCF is built on the Microsoft .NET Framework and simplifies development of connected systems. It unifies a broad array of distributed systems capabilities in a composable, extensible architecture that supports multiple transports, messaging patterns, encodings, network topologies, and hosting models. It is the next version of several existing products: ASP.NET's web methods (ASMX), Microsoft Web Services Enhancements for Microsoft .NET (WSE), .NET Remoting, Enterprise Services, and System.Messaging.

If you are a C++/C# developer looking for a book to build real-world WCF services, you would have run into the huge reference tomes currently in the market. These books are crammed with more information than you need and most build simple one-tier WCF services. And if you plan to use LINQ in the data access layer, you might buy another volume that is just as huge and just as expensive.

Our book is the quickest and easiest way to learn WCF and LINQ in Visual Studio 2008. It is the first book to combine WCF and LINQ in a multi-tier real-world WCF service. Multi-tier services provide separation of concerns and better factoring of code, which gives you better maintainability and the ability to split layers out into separate tiers for scalability. WCF and LINQ are both powerful yet complex technologies from Microsoft, but this book will get you through. The mastery of these two topics will quickly get you started creating service-oriented applications, and allow you to take your first steps into the world of Service Oriented Architecture without getting overwhelmed.

Through this book, you will first understand WCF concepts by developing a functional service and apply these techniques to a multi-tier real-world WCF service. You will learn how to use WCF to define the contracts in the service interface layer, Plain Old C# Objects (POCO) to implement business rules in the business logic layer, and LINQ to communicate with the databases in the data access layer. Microsoft pattern and practice Web Service Software Factory is used to create the framework for this WCF service. Concurrency control and distributed transaction support are discussed and tested at the end of the book. Clear step-by-step instructions and precise screenshots will make sure you will not get lost in the new world of WCF and LINQ.

  • Master WCF and LINQ concepts by completing practical examples and apply them to your real-world assignments
  • First book to combine WCF and LINQ in a multi-tier real-world WCF service
  • Ideal for beginners who want to build scalable, powerful, easy-to-maintain WCF services
  • Rich with example code, clear explanations, interesting examples, and practical advice – a truly hands-on book for C++ and C# developers
Page Count 384
Course Length 11 hours 31 minutes
ISBN 9781847196620
Date Of Publication 6 Dec 2008
What is LINQ
Creating the test solution and project
New data type var
Automatic properties
Object initializer
Collection initializer
Anonymous types
Extension methods
Lambda expressions
Built-in LINQ extension methods and method syntax
LINQ query syntax and query expression
Built-in LINQ operators
Creating the LINQNorthwind solution
Modeling the data contracts
Modeling the service contracts
Generating the source code
Modeling the Northwind database
Implementing the data access layer
Implementing the business logic layer
Implementing the service interface layer
Creating the host application and the test client
Testing the GetProduct and UpdateProduct operations
Testing concurrent update manually
Testing concurrent update automatically


Mike Liu

Mike Liu studied Mathematics and Software Engineering at Nanjing University and Brandeis University, where he graduated with a Bachelor's degree and a Master's degree, respectively. He is a Sun Certified Java Programmer (SCJP), Microsoft Certified Solution Developer for Visual Studio 6.0, and Microsoft Certified Solution Developer for .NET. He has been working as a software engineer/architect on various platforms (DOS, Unix, and Windows) using C/C++, Java, VB/VB.NET, and C#.

Mike started using C# for production development back in the year 2001 when C# was still in beta stage, and he is now working as a senior software engineer for an investment management firm in Boston, Massachusetts, US.

Mike had his first book, MITT: Multi-user Integrated Table-processing Tool Under Unix, Beijing Hangtian University Press, published in 1993, and second book, Advanced C# Programming, Tsinghua University Press, published in 2003. The previous three versions of this book were published in 2008, 2010, and 2012.