Bir İnceleme C# IList Neden Kullanmalıyız

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We needed the list indexer infrequently, so the inefficiency was derece a problem. If it had been, we could have provided some other implementation of IList, perhaps kakım a collection of small-enough arrays, that would have been more efficiently indexable while also avoiding large objects.

C# CollectionBase sınıfı, özelleştirilebilir koleksiyonların oluşturulmasını sağlamlar ve bu sayede nominalm projelerinde esneklik ve tekrar kullanılabilirlik sağlar.

Also, it casts IList to IList which has the potential to be dangerous. In most cases that I have seen, List which implements IList is used behind the scenes to implement IList, but this is not guaranteed and dirilik lead to brittle code.

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

swilliamsswilliams 48.6k2727 gold badges101101 silver badges130130 bronze badges 3 5 why not make it a just a List in the first place? I still don't understand why bonus you get from making it a IList then in the constructor you make it into a List

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

StuartLCStuartLC 106k1818 gold badges216216 silver badges289289 bronze badges Add a comment  

3 @phoog: Considering where Eric is coming from, it wouldn't be surprising he is more cautious about breaking changes. But it is definitely a valid point.

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.

The Cast function is just a reimplementation of the extension method that comes with 3.5 written bey a uygun static method. It is quite ugly and verbose unfortunately.

I know that IList is the interface and List is the concrete type but I still don't know when to C# IList Neden Kullanmalıyız use each one. What I'm doing now is if I don't need the Sort or FindAll methods I use the interface. Am I right? Is there a better way to decide when to use the interface or the concrete type?

Then I looked in my view(mvc) and found that I actually needed the count method kakım I needed to use C# IList Kullanımı a for loop. So in my own application I under estimated what I actually needed how do you anticipate what someone else will need or not need.

So typically, your C# IList Nasıl Kullanılır methods should accept and return interfaces for collections. This leaves your own implementation and your callers room to decide on the actual implementation birli required.

additional advantage is that C# IList Nedir your C# IList Nerelerde Kullanılıyor code is safe from any changes to concrete class as you are subscribing to only few of the methods of concrete class and those are the ones that are going to be there birli long as the concrete class inherits from the interface you are using.