Linq
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Language-Integrated Query (LINQ) is a set of features introduced in Visual Studio 2008 that extends powerful query capabilities to the language syntax of C# and Visual Basic. MSDN has a popular set of samples that demonstrate various aspects of LINQ, samples for both Visual C# and Visual Basic. These cover a range of areas, including restriction operators, grouping operators, aggregate operators, and a lot more. We've moved the C# LINQ samples to the MSDN Samples Gallery and added the features that the Gallery offers, including better navigation, better browsing, and the Gallery's "Copy Code" feature.
101 LINQ Samples
Over the last few months I wrote a series of blog posts that covered some of the new language features that are coming with the Visual Studio and .NET Framework "Orcas" release. Here are pointers to the posts in my series: The above language features help make querying data a first class programming concept. We call this overall querying programming model "LINQ" - which stands for .NET Language Integrated Query . Developers can use LINQ with any data source.
Using LINQ to SQL (Part 1) - ScottGu's Blog
Introduction This article focuses on how to read XML content and perform a bulk insert to a database using LINQ to XML, LINQ to SQL, and LINQ, and discusses the significance of LINQ. Background Commercial applications often require bulk data from various sources. This data is commonly available in the format of XML, and it requires the data to be updated in to the application's database.
Extracting XML and Insert Bulk Data using LINQ to XML and LINQ to SQL in .NET 3.5 - CodeProject
Dynamic LINQ (Part 1: Using the LINQ Dynamic Query Library) - ScottGu's Blog
LINQ (language integrated query) is one of the new features provided with VS 2008 and .NET 3.5. LINQ makes the concept of querying data a first class programming concept in .NET, and enables you to efficiently express queries in your programming language of choice. One of the benefits of LINQ is that it enables you to write type-safe queries in VB and C#. This means you get compile-time checking of your LINQ queries, and full intellisense and refactoring support over your code: While writing type-safe queries is great for most scenarios, there are cases where you want the flexibility to dynamically construct queries on the fly. For example: you might want to provide business intelligence UI within your application that allows an end-user business analyst to use drop-downs to build and express their own custom queries/views on top of data.Articles : .NET - LINQ to SQL - part 4
Visualizers are Visual Studio plugins which allow developers to view objects and data using a specialized user interface while debugging. It seems that the LINQ to SQL Visualizer and Expression Tree Visualizer are not installed by default within Visual Studio 2008 RTM. Both visualizers are very handy when learning LINQ or debugging LINQ to SQL applications. How to install ? These visualizers are shipped as samples and their sources can be found in the C:\Program Files\Microsoft Visual Studio 9.0\Samples folder. The latest version of sources can also be downloaded at the Microsoft Visual Studio 2008 Samples website : http://msdn2.microsoft.com/nl-nl/bb330936(en-us).aspx
c# - Dynamically Build Linq Lambda Expression - Stack Overflow
Okay, my guess is this is answered somewhere already, and I'm just not quite familiar enough with the syntax yet to understand, so bear with me. The users of my web app need to filter a long list of items in a gridview, accessed via a linqdatasource. I am using the OnSelecting Event to further filter items. I want to filter those items based on selections the users make in DropDownLists.