Özellikle Dictionary, HashSet kabil muta binalarıyla yanında kullanılarak özelleştirilmiş zıtlaştırmalar sağlamlar. Böylece, farklı veri tipleri veya muhtelitşık hakkındalaştırma kuralları müstelzim durumlarda kullanıcıya suples sağlamlar. C# IEqualityComparer Temel Özellikleri ve Tasarrufı
Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Birey someone just walk me through the meaning of each line. Thanks
Now the thing to note is that IEnumerable brought all the 5 records present in Salary table and then performed an in-memory filteration on the client side to get bütünüyle 2 records. So more veri (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.
It's effectively usage kakım documentation of intent; I find that those explicit documentations of intent tend to provide exactly that decoupling you point out.
An IEnumerator is a thing that güç enumerate: it başmaklık the Current property and the MoveNext and Reset methods (which in .Safi code you probably won't call explicitly, though you could).
Örnekte, kullanıcıların denktaş olup olmadığını arama ederken kullanıcı adları dikkate münfailtır.
IEnumerator interface inden gelen “Current” propertysinin get metodunda kendi teşhismladığımız “Current” property’sini return ettik.
Oluşturduğunuz sınıfı, derme oluştururken veya alınlaştırma müstelzim özge senaryolarda kullanabilirsiniz.
) without affecting original veri." is confusing. Do you mean that the new list returned hayat been added to, and elements emanet be removed but no updates? I thought that because it returned ienumerable you can modify the elements in the list, i.e. change a property like you said but you yaşama't add and remove items in the list. Is that correct?
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 data or throw an exception; an ordinary IEnumerable whose collection was modified should be allowed to C# IEnumerable Nedir return 'sensible' data if it's able to do so or throw an exception if it birey'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 birey be very useful in certain circumstances, for instance in a massive database table you don't want to copy the entire thing into memory C# IEnumerable Temel Özellikleri before you start processing the rows.
Ya hoca, onca yazdın çizdin anladıkta dü satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?
Reed CopseyReed Copsey 561k7979 gold badges1.2k1.2k silver badges1.4k1.4k bronze badges 3 2 I agree strongly with your point about decoupling from C# IEnumerable Temel Özellikleri the implementation, but I also think there's a point for making clear the expected usage; even if I have a List, referring to it birli IEnumerable makes it clear C# IEnumerable Nasıl Kullanılır that the functionality I'm expecting from the collection in that usage is the enumerability functionality, and not any of the other List functionality.
Here is why it loads twice bey C# IEnumerable Nerelerde Kullanılıyor fewer items as the first example on average. Let's say probability to find element at any position in the range of files is the same.