![]() ![]() A query expression consists of a set of clauses written in a declarative syntax similar to SQL or XQuery. It is just like any other expression and can be used in any context in which a C expression is valid. A query expression is a first-class language construct. “Saving” values for later in the query (‘let’ keyword)Īs I said in the beginning, there’s no distinct advantage of one syntax over the other besides readability. A query expression is a query expressed in query syntax.In some special cases, like the ones described above, query-syntax can be better. Even if you get used to it, remember that most programmers still find method-syntax more readable. You can switch to query-syntax for those, but I don’t recommend it. ![]() It provides an easy-to-understand functional syntax. In most cases, with simple operators like Where, Select and OrderBy the method-syntax is great. And by better I mean more readable and easier code. Join prod in products on category.ID equals prod.CategoryIDĪs a rule of thumb, whenever you need to Join collections, the query-syntax is going to be better. But unlike in query-syntax, it’s not really clear from the code. In the method-syntax way, the 2nd and 3rd parameters of Join are compared. It allows to store a result for later use in the query. One of the nicest things about the query-syntax is the let keyword. You’ll see some cool examples where method-syntax creates pretty complicated code that can be replaced by a short and neat query-syntax expression. Date Comparison In Entity Framework Linq Query.In some cases, you dont know until run time how many predicates you have to apply to source elements in the. By better, I mean it makes more readable code. There are several cases where query syntax is better, and this is what this post is all about. However, method-syntax isn’t always a better syntax. Dynamic LINQ Entity Framework (Core) Client vs.You can use any LINQ method that support predicate with a dynamic C expression: Deferred.There was a library. In fact, any query syntax can be transformed into method syntax (See Dudi Keleti’s There isn’t any distinct advantage of one over the other. Unlike query-syntax, which is sort of a new language (well, kind of like SQL but still much less familiar than C#). I can’t explain it fully, but I think the reason is that programmers are used to regular method calls. Var numbers = Enumerable.Range( 1, 100) //1,2.,100įor some reason, most developers (including myself) feel much more comfortable with Method Syntax. ![]()
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