C# IList Neden Kullanmalıyız Seçenekler

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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 hamiş indicate whether they dirilik be replaced, which in the case of Arrays (which return IsReadOnlys == true) güç be.

Then the person calling the method is free to call it with any veri type that is enumerable. This allows your code to be used in unexpected, but perfectly valid ways.

Edit: You do need to be quick to get answers in here. Birli I presented a slightly different syntax to the other answers, I will leave my answer - however, the other answers presented are equally valid.

That way you take advantage if you birey, while still allowing the client flexibility in what they pass in.

ToList first? How about returning it? I don't understand what you mean by "method will survive" when using vars? I know it will be a bit more work but won't you just have to change that to the new type bey well? So maybe IList to IList?

This level of abstraction goes the other direction when it belongs to method parameters. When you pass your list to a method that accepts IEnumerable you birey be sure that your list is not going to be modified. When you are the person implementing the method and you say you accept an IEnumerable because all you need to do is iterate through that list.

You may derece ever need that option, but C# IList Nedir it's an argument. I think it's the entire argument for returning the interface instead of the concrete type. It's worth mentioning, but in this case it katışıksız a serious flaw.

Ask those people what they'd like the methods to return. Your question is fundamentally "how do I know what software to write?" You know by getting to know what problems your customer özgü to solve, and writing code that solves their problems.

C# IList Nerelerde Kullanılıyor In most cases, if you are using a List and you think you could use a narrower interface instead - why derece IEnumerable? This is often a better fit if you don't need to add items. If you need to add to the collection, use the concrete type, List.

If you code your own class implementing the IList interface, make sure you C# IList Nedir also implement the non-generic IList interface, or the code will fail with a class cast exception.

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

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This will help if you decide to change the implementation of your class later to use a different concrete class. In that case the users of your library won't need to update their code since the interface doesn't change.

would I run into problems with this? Since could they hamiş pass in an array(that katışıksız a fixed size)? Would it be better maybe for a concrete List?