C# IList Nerelerde Kullanılıyor Ile ilgili detaylı notlar

C# IList Nerelerde Kullanılıyor Ile ilgili detaylı notlar

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We needed the list indexer infrequently, so the inefficiency was hamiş a problem. If it had been, we could have provided some other implementation of IList, perhaps kakım a collection of small-enough arrays, that would have been more efficiently indexable while also avoiding large objects.

Bu şekilde listelerin birbirini point etmesi ve bandajlı listenin elemanlarına bedel verilmesi katkısızlanmaktadır.

Also, it casts IList to IList which has the potential to be dangerous. In most cases that I have seen, List which implements IList is used behind the scenes to implement IList, but this is hamiş guaranteed and birey lead to brittle code.

Bearing this in mind, it makes most sense to pass types with the least number of external dependencies possible and to return the same. However, this could be different depending on the visibility of your methods and their signatures.

In the end, you might need to replace an implementation for any reason; performance is just one possibility. Regardless of the reason, using the least-derived type possible will reduce the need for changes in your code when you change the specific run-time type of your objects.

The speed difference is sufficiently great that in many cases it may be faster to copy a list to an array, sort the array, and copy the list back, than to try to have a sort routine process the list in place.

use LINQ to perform the conversion of your existing List when you return it - but it would be better to just create a more appropriate type to start with, bey shown above.

From my reading I C# IList Kullanımı think I could have used IEnumberable instead of IList since I am just looping through stuff.

And, if you don't even need everything in IList you birey always use IEnumerable too. With çağcıl compilers and processors, I don't think there C# IList Neden Kullanmalıyız is really any speed difference, so this is more just a matter of style.

If you gönül consider your method, determine that you C# IList Nasıl Kullanılır probably won't be changing the return collection type, then it is probably safe to return a more exact type. If you aren't sure, or are afraid that if you change C# IList Kullanımı it in future you'll be breaking other people's code, then go more general.

IList is not a class; it's an interface that classes emanet implement. The interface itself is just a contract between the consumer of the class and the class itself. This line of code will work:

Then I looked in my view(mvc) and found that I actually needed the count method bey I needed to use a for loop. So in my own application I under estimated what I actually needed how do you anticipate what someone else will need or not need.

When talking about return types, the more specific you are, the more flexible callers güç be with it.

For instance, if you return an IEnumerable, then you are limiting them to iterating -- they hayat't add or remove items from your object, they gönül only act against the objects. If you need to expose a collection outside of a class, C# IList Nedir but don't want to let the caller change the collection, this is one way of doing it. On the other hand, if you are returning an empty collection that you expect/want them to populate, then an IEnumerable is unsuitable.