C# IEnumerable Kullanımı Günlükler

C# IEnumerable Kullanımı Günlükler

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Done akışı ve LINQ sorguları: IEnumerable, Language Integrated Query (LINQ) sorgularında geniş olarak kullanılır. LINQ, done koleksiyonları üzerinde sorgulama ve filtreleme kabil işlemleri kolaylaştırır ve performansı pozitifrır.

, so if you're doing complicated work to evaluate the enumerable bey you read from it, that work doesn't happen until it's asked for. This is extra beneficial, because often (say, for searches again) you'll find you might derece need to do the work at all.

An IEnumerable is a thing that hayat be enumerated...which simply means that it katışıksız a GetEnumerator method that returns an IEnumerator.

Beli. Şu anne denli hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Haydi elkızı şimdi bu interfaceleri nazar boncuğu biricik ele alalım ve bu sırada fevkdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

What about IEnumerable, its just a way to make a returning type generic, and hamiş make strong coupling to List type.

So if you working with only in-memory data collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice bey it reduces network traffic and uses the power of SQL language.

Velhasıl… Yaptığımız bu kârlemler neticesinde “Personeller” derslikımız, içinde bir “Personel” data kümesi çitndıran ve bu bilgi kümesi üzerinde itere edilebilir bir nitelik sunu eden bir dershane mahiyetindedir.

You don't have to open a book and learn how to traverse the tree - but simply use the foreach statement on that object and you're done.)

Now what makes IEnumerable really stand out is iterator blocks (the yield keyword in C#). Iterator blocks implement the IEnumerable interface like a List or an Array, but they're very special because unlike a List or Array, they often only hold the state for a single item at a time. So if you want to loop over the lines in a very large file, for C# IStructuralComparable nerelerde kullanılıyor example, you birey write an iterator block to handle the file input.

Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 1 1 The mistake with "Reset" was with just having one type of enumerable. IMHO, there should have been an IMultipassEnumerable, inheriting IEnumerable, which would support Reset and guarantee that multiple passes will either return identical veri or throw an exception; an ordinary IEnumerable whose collection was modified should C# IStructuralComparable Kullanımı be allowed to return 'sensible' veri if it's able to do so or throw an exception if it can'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.

Any idea why the Enumerable is "split" into "inner" and "outer"? This happens when I inspect the element in debug/break mode via mouse. Is this perhaps Visual Studio's contribution? Enumerating on the tanıtımcık and indicating C# IStructuralComparable Nasıl kullanılır input and output of the Enum?

a reset on enumerators, but this is largely a design mistake and shouldn't be used (it is even a formal requirement in the spec C# IStructuralComparable nedir that C# IStructuralComparable nedir iterator blocks throw an exception if you call it).

IQueryable is a very powerful feature that enables a variety of interesting deferred execution scenarios (like paging and composition based queries).

şayet ki siz “var” istismar etmek istiyorsanız GetEnumerator metodunun art dkarşıüş tipini kötüdaki kadar generic IEnumerator olarak tanılamamlamanız gerekmektedir.