Hakkında herşey C# IList Nerelerde Kullanılıyor

Hakkında herşey C# IList Nerelerde Kullanılıyor

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Else use List. You emanet't really argue "oh but I KNOW that I will always pass in a List here", then you should take a List derece an IList, else you are breaking Liskov substitution principle: "if S is a subtype of T, then objects of type T may be replaced with objects of type S"

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

So I came across an interesting sıkıntı today. We have a WCF web service that returns an IList. Derece really a big deal until I wanted to sort it.

If you think that interfaces are useful only for building over-sized, grandiose architectures and have no place in small shops, then I hope that the person sitting across from you in the interview isn't me.

IList is a interface and doesn't have any implementation, so the performance of IList depending the class it implements

then, say, if you had an array and wished to print their type names to the console, you would first have to create a new List and fill it with your types.

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

If your methods form part of an interface, the methods will need to C# IList Kullanımı 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 derece always suited.

class Kisi string ad; string soyad; public string Ad get return ad; takım ad = value; public string Soyad get return soyad; grup soyad = value;

However, this makes the method more fragile, as any change to the returned object type may break the calling code. In practice though, that generally isn't a major mesele.

rajeshrajesh 39133 silver badges22 bronze badges 1 8 Excellent, clear answer, which I marked birli helpful. However, I would add that for most developers, most of the time, the tiny difference in yetişek size and performance is hamiş worth C# IList Nerelerde Kullanılıyor worrying about: if in doubt, just use a List.

for your return types. This gives your callers the most flexibility in passing in types to your methods and the most opportunities to cast/reuse the return values.

The other general reason for using C# IList Nerelerde Kullanılıyor interfaces is to expose the asgari amount of knowledge necessary to the user of an object. Consider the (contrived) case where I have C# IList Nerelerde Kullanılıyor a data object that implements IList.