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Is it possible in LINQ to join on multiple fields in a single join? EDIT var result = from x in entity join y in entity2 on new { x.field1, x.field2 } equals new { y.field1, y.field2 }
14 gru 2011 · You can't do an "or" style join in LINQ with an actual join clause. All join clauses in LINQ are equijoins. The closest you can come is a where clause: var query = from a in A from b in B where a.Foo == b.Foo || a.Foo == b.Bar select new { a, b };
In SQL you could make it part of a join statement... FROM tblAccounts c INNER JOIN tblAccountAssociations a ON c.AccountCode = a.ChildCode AND a.AssociationType == "DS" ... but in Linq statments you just add it as a predicate, the way you did (apart from the "and" issue).
We’ll start by discussing the basics of LINQ joins, and then we’ll show you how to use LINQ to join tables on different columns, on the same column, and on multiple columns. We’ll also provide some tips on how to optimize your LINQ queries for performance.
7 wrz 2023 · LINQ Inner Join With Multiple Conditions. 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:
29 maj 2024 · The join methods provided in the LINQ framework are Join and GroupJoin. These methods perform equijoins, or joins that match two data sources based on equality of their keys. (For comparison, Transact-SQL supports join operators other than equals, for example the less than operator.)
4 wrz 2024 · This guide delves deep into the art of joining multiple data sources using LINQ, equipping you with the knowledge and techniques to navigate complex data landscapes. We’ll explore various join types, unravel the intricacies of syntax, and illuminate best practices, all while working through practical examples.
