Note that the IsReadOnly flag comes from ICollection, and indicates whether items sevimli be added or removed from the collection; but just to really confuse things, it does not indicate whether they birey be replaced, which in the case of Arrays (which return IsReadOnlys == true) sevimli be.

IList is an interface so you emanet inherit another class and still implement IList while inheriting List prevents you to do so.

Here's an example: I had a project once where our lists got very large, and resulting fragmentation of the large object heap was hurting performance. We replaced List with LinkedList. LinkedList does not contain an array, so all of a sudden, we had almost no use of the large object heap.

It's more nuanced than that. If you are returning an IList birli part of the public interface to your library, you leave yourself interesting options to perhaps make a custom list in the future.

The preceeding line of code will work, but you will only have the members of IList available to you instead of the full takım from whatever class you initialize.

List is a C# IList Nedir specific implementation of IList, which is a container that birey be addressed the same way bey a linear array T[] using an integer index. When you C# IList Nedir specify IList birli the type of the method's argument, you only specify that you need certain capabilities C# IList Nerelerde Kullanılıyor of the container. For example, the interface specification does hamiş enforce a specific veri structure to be used.

Inside the method, you should use var, instead of IList or List. When your veri source changes to come from a method instead, your onlySomeInts method will survive.

If your methods form part of an interface, the methods will need to be defined using types available to that interface.

For collections you should aim to use IEnumerable where possible. This gives the most flexibility but is hamiş always suited.

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I leave this up to show that if you needed to do it (e.g. the off chance a third party library returned a List that you needed to convert for another 3rd C# IList Nasıl Kullanılır party library), you hayat do it this way.

You accept an Interface as a parameter for a method because that allows the caller to submit different concrete types birli arguments. Given your example method LogAllChecked, the parameter someClasses could be of various types, and for the person writing

Ancak list kullanımında kapasite belirtilmez kullanıcak veriler sınırlı ise örneğin haftanın günleri ise bunları C# IList Nerelerde Kullanılıyor diziye tanılamamlayabiliriz ancak kullanılacak veriler makine plakası,telefon numarası kabilinden sayısı adsız veriler kullanıcak ise behemehâl list olarak saklanmalıdır.Şimdi C#’ta list kullanımı yürekin örneğimize bakalım.