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Q&A

Posts tagged linq

Subtag of .net · 1 child tag

Use for questions related to Microsoft's Language Integrated Query that adds data querying capabilities. Based on the actual usage, consider adding more specific tags such as [linq-to-sql] (a database query is generated) or [linq-to-entities].

This tag doesn't have a detailed wiki yet.

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Q&A Order a subcollection from linq

I am using linq/EF core to retrieve data via an API call. How do I sort the collection of related data for each retrieved entity? Assume the following structure: an Order is made on a certain da...

1 answer  ·  posted 6mo ago by mcalex‭  ·  last activity 6mo ago by Alexei‭

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Q&A Update list based on presence of identifier in a second list

In C#, I have two lists and need to mark records in the first based on the second. Here's a sample: public class Vehicle { public string Make { get; set; } public string VIN { get; set;...

3 answers  ·  posted 2y ago by FrankLuke‭  ·  last activity 1y ago by Andrew Shepherd‭

Question c# linq
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Q&A How to perform LEFT JOIN using LINQ method call notation?

I am interested in performing a LEFT JOIN using LINQ-2-SQL when working with method call notation. This answer suggests a way that relies on GroupJoin but it is more verbose than expected: var le...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

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Q&A How to perform LINQ joins with multiple fields in a single join?

Note: this is an aggregate of the answer provided for this question. I want to get the LINQ equivalent of the following from SQL: SELECT .. FROM entity1 e1 JOIN entity2 e2 ON e1.field1 = e2.fie...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

Question c# linq join

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