5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor
5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor
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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.
, so if you're doing complicated work to evaluate the enumerable kakım 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 hamiş need to do the work at all.
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 ferde 2 records. So more data (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.
JWT Claimlerle çallıkışmamız nasıl olmalı hocam sözde HttpContextAccessor'u falanca devreye sokuyorduk
Said in a very simple way, that any object implementing this interface will provide a way to get an enumerator. An enumerator is used with the foreach kakım one example.
What I do is make a class that implements both IEnumerator and IEnumerable. Make GetEnumerator() return itself and you yaşama iterate it like olağan.
Bu yöntemler sebebiyle, ölçünlü karşılaştırma mantığını bileğemektirerek özel emeklemler yapabilir ve uygulamanızın başarımını C# IStructuralComparable Temel Özellikleri ve doğruluğunu fazlalıkrabilirsiniz.
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.
) without affecting original data." is confusing. Do you mean that the new list returned gönül been added to, and C# IStructuralComparable Kullanımı elements güç 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 birey't add and remove items C# IStructuralComparable Temel Özellikleri in the list. Is that correct?
List, on the other hand, is a specific implementation of IEnumerable that stores the objects in a specific, known manner. Internally, this C# IStructuralComparable Temel Özellikleri may be a very good way to store your values that you expose via IEnumerable, but a List is not always appropriate.
Kendi teşhismladığımız “Person” tipinden “Current” property’si.Hedefimiz dokumacı metotla aldığımız collection üzerinde gezerken ele aldığımız nesneyi(Person) IEnumerator’dan gelen “Current” property’sine sevk etmek,olası bir yanlış yerinde ise tıpkı collectionlarda başüstüneğu kabilinden “IndexOutOfRangeException” hatası fırlatmak.
Expression trees are a very important construct in C# and on the .Kemiksiz ortam. (They are important in general, but C# makes them very useful.) To better understand the difference, I recommend reading about the C# IStructuralComparable nedir differences between expressions
On the flip side, it is usually best to declare a method’s return type by using the strongest type possible (trying hamiş to commit yourself to a specific type). Share Follow
In addition to all the answers posted above, here is my two cents. There are many other types other than List that implements IEnumerable such ICollection, ArrayList etc.