şayet milyonlarca şart üzerinde sorgulama medarımaişetlemi örgüyorsak kuşkusuz IQueryable IEnumerable için henüz hızlı sorgulama emeklemi yapar.
So when you have to simply iterate through the in-memory collection, use IEnumerable, if you need to do any manipulation with the collection like Dataset and other veri sources, use IQueryable
So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.
But now see the below code we have changed IEnumerable to IQueryable. It creates a SQL Query at the server side and only necessary veri is sent to the client side.
System.Collections.IEnumerator. This interface provides the infrastructure to allow the caller to traverse the internal objects contained by the IEnumerable-compatible container:
So if you working with only in-memory veri collection IEnumerable is a good choice but if you want to query veri collection which is connected with database `IQueryable is a better choice as it reduces network traffic and uses the power of SQL language.
The primary difference is that the LINQ operators for IQueryable take Expression objects instead of delegates, meaning the custom query logic it receives, e.g., a predicate or value selector, is in the form of an expression tree instead of a delegate to a method.
C# IEnumerator kullanarak MySQL veritabanından data çgrup bu C# IEnumerable Nerelerde Kullanılıyor verileri DataGridView denetçiüne nasıl ekleyebileceğimizi gösteren örnek kod adida belde almaktadır.
Will I run into issues if I connect a shunt 50 ohm resistor over a high impedance input pin on an IC?
Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 1 C# IEnumerable Kullanımı 1 The mistake with "Reset" was with just having one type of enumerable. IMHO, there should have been an IMultipassEnumerable, inheriting IEnumerable, which would C# IEnumerable Nerelerde Kullanılıyor support Reset and guarantee that multiple passes will either return identical data or throw an exception; an C# IEnumerable Kullanımı ordinary IEnumerable whose collection was modified should be allowed to return 'sensible' data if it's able to do so or throw an exception if it dirilik't, and an ISafeEnumerable, which would be expected to work sensibly (without throwing an exception) even if a collection changes. A bit late now to change things, though.
This sevimli be very useful in certain circumstances, for instance in a massive database table you don't want to copy the entire thing into memory before you start processing the rows.
niteleyerek sorarsak şayet üst satırlarda bahsettiğimiz gibi o derslikın geriye IEnumerator nesnesi dönen GetEnumerator isminde metodu barındırıyor olması demekti. Ee haliyle IEnumerable interface’i dayalı sınıfa uygulanmış olduğunda GetEnumerator metodunu implement edecektir.
IEnumerator kullanarak, koleksiyonun topu topunı belleğe yüklemeden, sadece mukteza elemanları C# IEnumerable Nedir konuler ve bu sayede belleğin etkili kullanılmasını esenlar.
şayet ki siz “var” işletmek istiyorsanız GetEnumerator metodunun son dyöreüş tipini süflidaki kabilinden generic IEnumerator olarak teşhismlamanız gerekmektedir.
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