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I think a more readable and flexible option is to use Where function: var result = from x in entity1 from y in entity2 .Where(y => y.field1 == x.field1 && y.field2 == x.field2) This also allows to easily change from inner join to left join by appending .DefaultIfEmpty(). Share.
24 sty 2024 · How to do joins in LINQ on multiple fields in single join (13 answers) Closed 7 months ago. Can someone help me translate the following SQL query into a LINQ format. SELECT * FROM "Table1" AS t1. INNER JOIN "Table2" AS t2 ON t1."t2Id" = t2."Id" LEFT JOIN "Table3" AS t3 ON t2."Id" = t3."t2Id" AND t1."Code" = t3."Code" WHERE r."Code" = 61000.
Summary: * LINQ to DataSet supports multi-field joins using the Join method. * You can specify join conditions on multiple fields using the on clause and the equals keyword. * Alternatively, you can use the where clause to filter on multiple fields to achieve an equijoin.
7 wrz 2023 · If you want to use multiple conditions within your join, you can simply use more than one where clause. Let’s update our query once again: var query = from p in products join c in categories on p.CategoryId equals c.Id where p.Id >= 3 where c.Name.EndsWith('s') select new { Id = p.Id, Name = p.Name, Category = c.Name };
20 sty 2022 · return View(Name()); } IEnumerable<customer>Name() {. using (AdventureWorksLTDataContext db = new AdventureWorksLTDataContext()) {. return (IEnumerable<customer>)db.Customers.Select(c => new { FirstName = c.FirstName, LastName = c.LastName }).ToList(); }
Learn how to join multiple conditions in LINQ with this comprehensive guide. Includes examples and code snippets to help you understand the concepts and get started quickly.
A LINQ join on multiple columns is a way to combine data from two or more tables in a single query. This is done by using the `Join` method. The `Join` method takes two or more tables as input, and a join clause that specifies how the tables are related.
