Açıklaması C# IList Neden Kullanmalıyız Hakkında 5 Basit Tablolar

Açıklaması C# IList Neden Kullanmalıyız Hakkında 5 Basit Tablolar

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We needed the list indexer infrequently, so the inefficiency was derece a sıkıntı. 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.

Same principle as before, reversed. Offer the bare asgari 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 mesele today. We have a WCF web service that returns an IList. Not really a big deal until I wanted to sort it.

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

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

List is a specific implementation of IList, which is a container that dirilik be addressed the same way as 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 not enforce a specific data structure to be used.

You are most often better of using the most general usable type, in this case the IList or C# IList Kullanımı even better the IEnumerable interface, so that you emanet switch the implementation conveniently at a later time.

In fact, any time you are using reflection IList is more convenient than IList-of-T, since generics and reflection don't play C# IList Nerelerde Kullanılıyor nicely together. It dirilik be done, but it is a pain. Unfortunately since IList-of-T doesn't derive from IList there are cases where this birey işleyen - but it is a good 95% rule.

If the parameter C# IList Nedir type is C# IList Nedir IList, then the caller saf much more freedom, and birey use classes you never heard about, which may derece even have existed when your code was written.

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

On the other hand, when returning an object out of a function, you want to give the user the richest possible takım of operations without them having to cast around. So in that case, if it's a List internally, return a copy bey a List.

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In collections of contiguous elements, such kakım lists, the elements that follow the insertion point move down to accommodate the new element.

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