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 …
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 …
c# - Where IN clause in LINQ - Stack Overflow
Jun 6, 2009 · How to make a where in clause similar to one in SQL Server? I made one by myself but can anyone please improve this? public List<State> Wherein(string listofcountrycodes) { ...
How to group by multiple columns using LINQ - Stack Overflow
How can I do group by multiple columns in LINQ? Something similar to this in SQL: SELECT * FROM <TableName> GROUP BY <Column1>,<Column2> How can I convert this to LINQ:
c# - Linq-to-Entities Join vs GroupJoin - Stack Overflow
Jun 16, 2025 · While GroupJoin is the equivalent of OUTER JOIN: C is in the result set, but with an empty list of related entries (in an SQL result set there would be a row C - null). Syntax So let the two …
Update all objects in a collection using LINQ - Stack Overflow
Dec 30, 2008 · Is there a way to do the following using LINQ? foreach (var c in collection) { c.PropertyToSet = value; } To clarify, I want to iterate through each object in a collection and then …
c# - What is the difference between LINQ query expressions and ...
Jun 23, 2015 · Your LINQ query (first example) and your LINQ using method chaining (second example) produce the same result, with different syntax. It is possible to write a LINQ query as a LINQ method …
LINQ Where with AND OR condition - Stack Overflow
Jan 11, 2016 · LINQ Where with AND OR condition Asked 16 years, 1 month ago Modified 6 years, 6 months ago Viewed 199k times