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The LINQ Project

The LINQ Project is a codename for 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

LINQ on Channel9LINQ and Functional Programming

Anders Hejlsberg, the chief architect of C#, describes the next release of Visual Studio, code-named Orcas. The video explores functional programming and the ways LINQ simplifies how we write database and XML queries in C# and VB. 

LINQ Project OverviewLINQ 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

Orcas Beta 2 Now Available with Updated Samples

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

How to create a Generic Collection Class with Sorting Support in .NET 3.5? (LINQ, IQueryable)
When I was using .NET 2.0, I utilized a generic collection c... more
Grouping and count issue
Hello,I'm going crazy with the following query !I want to re... more
LINQ to SQL: Cannot order by Link deferred property
I have a class called "OrganizationUnits" mapped to a table ... more
Failed to set one or more properties on type
  I am experimenting with listview and linqdatasource to see... more
Can't use .Select() method on DataGridView.SelectedRows
I'm trying to use the Select method on a DataGridView to que... more

LINQ Bloggers

Paul Vick

Paul Vick RSS Feed

Iterators in Visual Basic
WARNING: This is a speculative post. Caveat emptor. Actually, in this case I don't thing the above warning is strong enough. This is a super speculati... more

The Visual Basic Team

Visual Basic Team RSS Feed

VB 2008 Language Deep Dive - Presentation Materials (Jonathan Aneja)
Last week I got the chance to visit the Toronto .NET User Group and give a talk on all the great new language features in VB2008.  It was great t... more

Dinesh Kulkarni

Dinesh Kulkarni RSS Feed

.NET Framework 3.5 SP1: LINQ perf improvements (LINQ to Objects and LINQ to SQL)
There are three perf improvements in the just released SP1. As always, I will let you run your own microbenchmarks or more meaningful app-level benchm... more

Matt Warren

Matt Warren RSS Feed

LINQ: Building an IQueryable Provider - Part XI
This is the eleventh in a series of posts on how to build a LINQ IQueryable provider. If you have not read the previous posts you’ll want to do so bef... more

The XML Team

The XML Team RSS Feed

Introducing the XmlPreloadedResolver
The XmlPreloadedResolver is a new type that we’ve been working on in SilverLight that provides the ability to load a DTD without a call to the networ... more

LINQ over DataSet Team

LINQ over DataSet Team

Astoria team is hiring!
The Astoria team is hiring! We have positions open for Developers and Program Managers.  Currently, we are finishing up V1 and planning for V2,... more

More...

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?

Tracking Orcas

The new Visual Studio preview offers functionality with LINQ, AJAX and .NET Framework 3.5.
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