LINQ

LINQ is a set of extensions to the .NET Framework that encompass language-integrated query, set, and transform operations. It extends C# and Visual Basic with native language syntax for queries and provides class libraries to take advantage of these capabilities.

Featured Information

Essential LINQ (Microsoft .NET Development Series)

LINQ is one of Microsoft’s most exciting, powerful new development technologies. Essential LINQ is the first LINQ book written by leading members of Microsoft’s LINQ and C# teams.

LINQ to XML

LINQ to XML was developed with Language-Integrated Query over XML in mind and takes advantage of standard query operators and adds query extensions specific to XML.

Information

Downloads

Full Visual Studio 2008: 90-Day Trial

Videos

Future Directions for Data Programming in Visual Basic

Join Paul Vick and Amanda Silver as they discuss some of the features coming in Visual Basic 9.0.

Using Visual Basic as a Dynamic Programming Language

Paul Vick and Erik Meijer talk about the dynamic aspects of programming in Visual Basic, both in Visual Basic 2005 and Visual Basic 9.0.

C# 3.0 Language Enhancements in Action

See the changes proposed to C# 3.0 in action. This video showcases implicit variable declaration, extension methods and lambda expressions. This presentation is based on an earlier release of the Microsoft Visual Studio Code Name “Orcas” C# LINQ CTP.  

C# 3.0 LINQ in Action

This video showcases the use of The LINQ Project with C# 3.0. In this video, LINQ is used to query in-memory data stores. This presentation is based on an earlier release of the Microsoft Visual Studio Code Name “Orcas” C# LINQ CTP.

C# 3.0 XLinq in Action

This video showcases the use of The LINQ Project with C# 3.0. In this video, LINQ is used to query XML files. This presentation is based on an earlier release of the Microsoft Visual Studio Code Name “Orcas” C# LINQ CTP.  

C# 3.0 DLinq in Action

This video showcases the use of The LINQ Project with C# 3.0. In this video, LINQ is used to query relational databases. This presentation is based on an earlier release of the Microsoft Visual Studio Code Name “Orcas” C# LINQ CTP.

Hands-on Labs

Visual Basic 9.0 Specific Information

Overview of Visual Basic 9.0

Read about the proposed changes to Visual Basic.

Visual Basic LINQ Samples
Visual Basic 9.0 Language Specification

Download and read the full Visual Basic 9.0 Language Specification.

Visual C# 3.0 Specific Information

C# 3.0 Language Specification

Read about the proposed changes to the C# language.

Forums

The LINQ Project General Forum

Ask questions about the LINQ Project. The LINQ Project delivers Language Integrated Query (LINQ) for objects, relational, XML, and other forms of data.

Recent Posts LINQ Forum RSS Feed

Getting null references on subordinate object references in LINQ query results
I'm very new to LINQ, so apologies if my nomenclature is out... Mehr
Lambda Expression on List Collection
Hi,I am new to Linq trying to learn good features. Could ple... Mehr
How to execute a LINQ Query that is grouped by multiple columns
I have the following query. nssRecords is a list of objects... Mehr
using LINQ to query custom collection
I have a question for the LINQ lovers. Consider that I have... Mehr

LINQ Bloggers

Paul Vick Paul Vick RSS Feed

Radio Silence
Gosh, it’s been six months since I’ve said anything on this blog. I was beginning to wonder myself whether I’d ever come back or if this just would be... Mehr

The Visual Basic Team Visual Basic Team RSS Feed

Spot the Bug! – The Key to using Anonymous Types (Jonathan Aneja)
This one’s going to be long, but for those of you who’ve felt the first 3 in this series were too easy I promise this one’s tougher J.   Let’s sa... Mehr

Dinesh Kulkarni Dinesh Kulkarni RSS Feed

.NET RIA Services Resources (for March 2009 Preview)
Some of it is covered in my previous post and on Silverlight.net but here is a summary: Bits (prereq: Visual Studio 2008 SP1, Silverlight 3 beta tool... Mehr

Matt Warren Matt Warren RSS Feed

Building a LINQ IQueryable Provider – Part XVI (IQToolkit 0.16)
This is the sixteenth in a series of posts on how to build a LINQ IQueryable provider. If you have not read the previous posts you might try rolling i... Mehr

The XML Team The XML Team RSS Feed

Understanding XML Schema Sets in the XSD Designer
We have recently blogged about the new XML Schema Designer and the various views over schemas offered by it. We visit here the concept of schema sets,... Mehr

LINQ over DataSet Team LINQ over DataSet Team

Project Astoria == ADO.NET Data Services == WCF Data Services
As announced at PDC this afternoon by Pablo, the ADO.NET Data Services framework is being renamed WCF Data Services as the first part of a long term... Mehr

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LINQ in the News

These articles provide a historical overview of LINQ, reasons behind its development, and details the benefits and features LINQ offers to developers.
Looking to LINQ

Will Microsoft's Language Integrated Query transform programmatic data access?
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