c# - What is LINQ and what does it do? - Stack Overflow
LINQ is a technology for extracting data using an idiom derived from the C# programming language. While it owes much in functional design to SQL, it is fundamentally its own data querying language.
c# - Proper LINQ where clauses - Stack Overflow
Apr 27, 2015 · When this is a linq-to-object call, multiple where clauses will lead to a chain of IEnumerables that read from each other. Using the single-clause form will help performance here. …
c# - "IN" Operator in Linq - Stack Overflow
Feb 1, 2013 · I am trying to convert an old raw Sql query in Linq with Entity Framework here. It was using the IN operator with a collection of items. The query was something like that: SELECT …
LINQ Where with AND OR condition - Stack Overflow
Jan 11, 2016 · LINQ Where with AND OR condition Asked 16 years, 2 months ago Modified 6 years, 6 months ago Viewed 200k times
How can I conditionally apply a Linq operator? - Stack Overflow
Aug 14, 2008 · We're working on a Log Viewer. The use will have the option to filter by user, severity, etc. In the Sql days I'd add to the query string, but I want to do it with Linq. How can I conditionally add...
Newest 'linq' Questions - Stack Overflow
Dec 11, 2025 · I am new to LINQ query and trying figure out how to filter list of records based on the list of IDs found in the sub-query inside. Basically, I am looking for the option similar to SQL "IN" ...
c# - LINQ performance FAQ - Stack Overflow
Oct 28, 2010 · Linq, as a built-in technology, has performance advantages and disadvantages. The code behind the extension methods has had considerable performance attention paid to it by the .NET …
Pros and Cons of LINQ (Language-Integrated Query)
Apr 25, 2017 · Wide range of operators provided by default, and others can easily be added for LINQ to Objects Language features introduced primarily for LINQ are widely applicable elsewhere (yay for …
What is the difference between method syntax and query syntax?
But LINQ and lambdas are two totally different things, both of which can be used by themselves. Update: As svick rightly points out, LINQ with query syntax is also implemented using lambda …
"Or" equivalent in Linq Where () lambda expression
Jan 20, 2010 · Given an existing Linq query you can add a where clause that takes an array of strings (SearchStrings), and check if any of them match whatever object in the collection you're search.