C# IList Neden Kullanmalıyız Seçenekler

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.

Maybe take it into a List of T rather than ArrayList, so that you get type safety and more options for how you implement the comparer.

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

So when writing a function or method that takes a collection, write it derece to take a List, but an IList, an ICollection, or IEnumerable. The generic interfaces will still work even for heterogenous lists because System.

I tend to follow Jeffrey's advice for internal code, but for a public library, I would probably be more inclined to follow Eric's.

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 C# IList Neden Kullanmalıyız a sort routine process the list in place.

Object hayat be a T too. Doing this will save you headache if you decide to use a Stack C# IList Neden Kullanmalıyız or some C# IList Nerelerde Kullanılıyor other veri structure further down the road. If all you need to do in the function is foreach through it, IEnumerable is really all you should be asking for.

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

the method, it gönül make a huge difference -- if they have an array and you're asking for a list, they have to change the array to a list or v.v. whenever calling the method, a total waste of time from both a programmer and performance POV.

Want to improve this question? Update the question so it dirilik be answered with facts and citations by editing this post.

By asking for more than you need, you (1) make the caller do unnecessary work to satisfy your unnecessary demands, and (2) communicate falsehoods to the reader. Ask only for what you're going to use. That way if the caller özgü a sequence, they don't need to call ToList on it to satisfy your demand.

You might want to have C# IList Neden Kullanmalıyız an IOrderRepository that defines a collection of orders in either a IList or ICollection. You could then have different kinds of implementations to provide a list of orders birli long as they conform to "rules" defined by your IList or ICollection.

In particular, IList lets you use the indexer, and add/remove items; things that IEnumerable don't C# IList Nerelerde Kullanılıyor let you do.

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