linq Archives - Page 4 of 11

Find an item in a list by LINQ

Here I have a simple example to find an item in a list of strings. Normally I use a for loop or anonymous ...

May 22, 2022
0 Comments

When to use Cast() and Oftype() in Linq

I am aware of two methods of casting types to IEnumerable from an Arraylist in Linq and wondering in which cases to use ...

May 22, 2022
0 Comments

Linq to Entities – SQL “IN” clause

In T-SQL you could have a query like: SELECT * FROM Users WHERE User_Rights IN ("Admin", "User", "Limited") How would you replicate that ...

May 22, 2022
0 Comments

Multiple Order By with LINQ [duplicate]

This question already has answers here: Multiple “order by” in LINQ (7 answers) Closed 4 years ago. I start with a basic class ...

May 22, 2022
0 Comments

Extension methods must be defined in a non-generic static class

I’m getting the error: Extension methods must be defined in a non-generic static class On the line: public class LinqHelper Here is the ...

May 21, 2022
0 Comments

LINQ: Select an object and change some properties without creating a new object

I want to change some properties of a LINQ query result object without creating a new object and manually setting every property. Is ...

May 21, 2022
0 Comments

How can I get the index of an item in a list in a single step?

How can I find the index of an item in a list without looping through it? Currently this doesn’t look very nice – ...

May 21, 2022
0 Comments

OrderBy descending in Lambda expression?

I know in normal Linq grammar, orderby xxx descending is very easy, but how do I do this in Lambda expression? 6 Answers ...

May 21, 2022
0 Comments

Fluent and Query Expression — Is there any benefit(s) of one over other?

LINQ is one of the greatest improvements to .NET since generics and it saves me tons of time, and lines of code. However, ...

May 20, 2022
0 Comments

LINQ query to select top five

I have a LINQ query: var list = from t in ctn.Items where t.DeliverySelection == true && t.Delivery.SentForDelivery == null orderby t.Delivery.SubmissionDate select ...

May 20, 2022
0 Comments