Benim C# IEnumerable Nerelerde Kullanılıyor Başlarken Çalışmak

Benim C# IEnumerable Nerelerde Kullanılıyor Başlarken Çalışmak

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The difference between IQueryable and IEnumerable is centered around this point. IQueryable builds expression trees whereas IEnumerable does hamiş, at least not in general terms for those of us who don't work in the secret labs of Microsoft.

are two properties in particular—one that points to a query provider (e.g., a LINQ to SQL provider) and another one pointing to a query expression representing the IQueryable object kakım a runtime-traversable abstract syntax tree that dirilik be understood by the given query provider (for the most part, you güç't give a LINQ to SQL expression to a LINQ to Entities provider without an exception being thrown).

GetEnumerator metodu, bir sınıfa iterasyon örgülarını kazandıracak özellikleri çitndıran IEnumerator nesnesi dönen bir metotdur.

There are many differences but let us discuss about the one big difference which makes the biggest difference. IEnumerable interface is useful when your collection is loaded using LINQ or Entity framework and you want to apply filter on the collection.

To get them I use VisualTreeHelper class. But I have to consider that there might be A LOT OF children so copying to some array or Collection will by expensive. – drasto 5 mins ago

but if you "spoof" the enumerator into an enumerable, the second sequence will be empty. Or if you C# IEnumerable Temel Özellikleri do them in parallel - just bizarre. And C# IEnumerable Temel Özellikleri there are

Bu yöntemler sayesinde, ölçünlü karşılaştırma mantığını değustalıktirerek özel işçiliklemler yapabilir ve uygulamanızın başarımını ve doğruluğunu artırabilirsiniz.

For small result sets this is likely to be a single trip, for large ones you're sending a request for more rows from the results, but it doesn't re-run the entire query.

Where the execution will be performed out-of-process, the logic of the query başmaklık to be represented in veri such that the LINQ provider emanet convert it into the appropriate form for the out-of-memory execution - whether that's an LDAP query, SQL or whatever.

There are many cases (such as an infinite list or a very large list) where IEnumerable cannot be transformed to a List. The most obvious examples are all the prime numbers, all the users of feysbuk with their details, or all the items on ebay. The difference is that "List" objects are stored "right here and right C# IEnumerable Kullanımı now", whereas "IEnumerable" objects work "just one at a time".

It is cleaner, your users don't get a list where they shouldn't (they could cast it to a Listafter all) and you don't need to create a Listobject.

There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, which mean you go over each item by-itself and birey perform all kinds of computations before and after. And again, this happens one-by-one, so C# IEnumerable Kullanımı you don't have to hold all the collection when you start. The computations won't actually be performed until the enumeration begins (i.e. until you run the foreach loop).

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Below mentioned small sınav might help you understand one aspect of difference between IQueryable and IEnumerable. I've reproduced this answer from this post where I was trying to add corrections to someone else's post