Programming microsoft linq

With LINQ, you can query data from a variety of sources — including databases, objects, and XML files — directly from Microsoft Visual Basic® or C#. Guided by data-access experts who’ve worked in depth with LINQ and the Microsoft development teams, you’ll learn how .NET Framework 4 implements LINQ, and how to exploit it. Clear examples show you how to deliver your own data-access solutions faster and with leaner code. Discover how to: Use LINQ to query databases, object collections, arrays, XML, Microsoft Excel® files, and other sources...

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Completely reengineered for ASP.NET 4—this definitive guide deftly illuminates the core architecture and programming features of ASP.NET 4 in a single, pragmatic volume. Web development expert Dino Esposito provides essential, architectural-level guidance, along with the in-depth technical insights designed to take you—and your solutions—to the next level. The book covers Dynamic Data, AJAX, Microsoft Silverlight®, ASP.NET MVC, Web forms, LINQ, and security strategies—and features extensive code samples in Microsoft Visual C#® 2010....

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C # programmers at any level need to learn about LINQ (Language-Integrated Query), Microsoft’s breakthrough technology for simplifying and unifying data access from any data source. With LINQ you can write more elegant and flexible code, not just to access databases and files but also to manipulate data structures and XML. LINQ for Visual C# 2008 is a short guide to the major features of LINQ. It thoroughly covers LINQ to Objects, LINQ to SQL, LINQ to DataSet, and LINQ to XML. For instance, you’ll learn to...

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Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed with initial capital letters or in all capitals. The author and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions.

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Language Integrated Query (LINQ), as well as the C# 3.0 and VB 9.0 language extensions to support it, is the most import single new feature of Visual Studio 2008 and the .NET Framework 3.x. LINQ is Microsoft ’ s first attempt to define a universal query language for a diverse set of in - memory collections of generic objects, entities persisted in relational database tables, and element and attributes of XML documents or fragments, as well as a wide variety of other data types, such as RSS and Atom syndication feeds. Microsoft invested millions of dollars in Anders Hejlsberg...

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In July 2008 Microsoft released the first version of the ADO.NET Entity Framework as part of the Visual Studio 2008 Service Pack 1 as well as the .NET Framework 3.5 Service Pack 1. At the time, Microsoft LINQ (Language Integrated Query) and LINQ to SQL had been out for a while and were gaining a lot of attention.

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The best way to write queres using LINQ to SQL is by having a DataContext-derived class in your code that exposes all the tables, stored procedures, and user-defined functions you need as properties of a class instance. You also need entity classes that are mapped to the database objects. As you have seen in previous chapters, this mapping can be made by using attributes to decorate classes or through an external XML mapping file. However, writing this information by hand is tedious and error-prone work. You need some tools to help you accomplish this work....

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The reader is walked through the creation of a Microsoft SQL Server 2008 database, the creation of a Visual Studio 2010 solution consisting of 3 projects (a Window Presentation Foundation (WPF), a Console Application, and a Class Library). Each one utilizes the .NET 4.0 framework. Then the reader is walked through the steps required to configure and use the many features available contained within NHibernate 3.2.

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MICROSOFT ® .NET DEVELOPERSAMPLE CHAPTERSinformit.com/teched09Sampler1_cover.indd 1 4/29/09 1:12:02 PMEffective REST Services via .NET9780321613257Kenn Scribner, Scott Seely CHAPTER 3: Desktop Client OperationsEssential LINQ 9780321564160Charlie Calvert, Dinesh Kulkarni CHAPTER 3: The Essence of LINQ Visual Studio Tools for Office 20079780321533210Eric Carter, Eric Lippert CHAPTER 3: Programming ExcelConcurrent Programming on Windows9780321434821 Joe DuffyCHAPTER 3

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