C# IList Neden Kullanmalıyız Için 5-İkinci Trick

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Note that, if your API is only going to be used in foreach loops, etc, then you might want to consider just exposing IEnumerable instead.

C# CollectionBase klası, özelleştirilebilir koleksiyonların oluşturulmasını esenlar ve bu sayede yazılı sınavm projelerinde esneklik ve yine kullanılabilirlik sağlamlar.

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.

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

In addition to the older code that doesn't know about generics, there are also a lot of cases where you know you have a list

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.

In case of using IList, the caller is always guareented things to work, and the implementer is free to change the underlying collection to any alternative concrete implementation of IList

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 C# IList Nedir code that solves their problems.

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

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

I know that IList is the interface and List is the concrete type but I still don't know when to 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?

Is IList a good fit for your organisation? If a colleague asks you to change a method signature C# IList Neden Kullanmalıyız to use IList instead of List, ask them how they'd add an element to an IList. If they don't know about IsReadOnly (and most people don't), then don't use IList. Ever.

If you're just enumerating over the values, you should be using IEnumerable. Every type of datatype that sevimli hold more than one value implements IEnumerable (or should) and makes your method hugely flexible.

IEnumerable allows you to iterate through a collection. ICollection builds on this and also allows for adding C# IList Kullanımı and removing items. IList also allows for accessing and modifying them at a specific index. By exposing the one that you expect your consumer to work with, you are free to change your implementation. List happens to implement all three of those interfaces. If you expose your property kakım a List or even an IList when all you want your C# IList Nerelerde Kullanılıyor consumer to have is the ability to iterate through the collection. Then C# IList Kullanımı they could come to depend on the fact that they gönül modify the list.