5 Basit Teknikleri için C# IList Nedir

5 Basit Teknikleri için C# IList Nedir

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The following example demonstrates the implementation of the IList interface to create a simple, fixed-size list. This code is part of a larger example for the IList interface.

Same principle birli before, reversed. Offer the bare asgari that your caller requires. If the caller only requires the ability to enumerate the sequence, only give them an IEnumerable.

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 hamiş contain an array, so all of a sudden, we had almost no use of the large object heap.

A List object allows you to create a list, add things to it, remove it, update it, index into it and etc. List is used whenever you just want a generic list where you specify object type in it and that's it.

Your code is now broken, because int[] implements IList, but is of fixed size. The contract for ICollection (the base of IList) requires the code that uses it to check the IsReadOnly flag before attempting to add or remove items from the collection. The contract for List does not.

The Liskov Substitution Principle C# IList Kullanımı (simplified) states that a derived type should be C# IList Neden Kullanmalıyız able to be used in place of a base type, with no additional preconditions or postconditions.

I thought I'd never need to change from a List but had to later change to use a custom list library for the extra functionality it provided. Because I'd only returned an IList none of the people that used the library had to change their code.

Then when you need "add" or "sort" then use Collection if need more then use List. So my hard rule would be: START always with IENumarable and if you need more then extend...

but my problem is that i am not understanding what is its use and when to use it . So i hope that anyone kişi help me . Thanks .

Coming soon: Throughout 2024 we will be phasing out GitHub Issues birli the feedback mechanism for content and replacing it with a new feedback C# IList Nasıl Kullanılır system. For more information see: .

Of course that only need apply to methods that are externally visible (i.e. public methods). I personally use interfaces even in internal code, but kakım you are able to change all the code yourself if you make breaking changes it's hamiş strictly necessary.

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Unless you have a very compelling reason to do so, your best bet will be to inherit from System.Collections.ObjectModel.Collection since it has C# IList Nasıl Kullanılır everything you need.

If you had used IList in the rest of the app you could extend List with your own custom class and still be able to pass that around without refactoring.