En iyi Tarafı C# IList Nedir

En iyi Tarafı C# IList Nedir

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Yani IEnumerable mimarisında filtreleme aksiyonlemleri memory de gestaltlırken, IQueryable da veritabanından direk filtrelenmiş verileri elde ederiz.

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.

Using IList instead of List makes writing unit tests significantly easier. It allows you to use a 'Mocking' library to pass and return veri.

The following example demonstrates the implementation of the IList interface to create a simple, fixed-size list.

Your code is now broken, because int[] implements IList, but is of fixed size. The contract for ICollection (the base of IList) requires the code that uses it to check the IsReadOnly flag before attempting to add or remove items from the collection. The contract for List does derece.

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.

I thought I'd never need to change from a List but had to later change to use a custom list library for the extra functionality it provided. Because I'd only returned an IList none of the people that used the library had to change their code.

Don't you know in advance if your method needs a list that dirilik take additional members; don't you specify that in the method signature? What exactly were you going C# IList Kullanımı to do if you were passed a read only list like C# IList Nerelerde Kullanılıyor int[]?

And, if you don't even need everything in IList you can always use IEnumerable too. With çağcıl compilers and processors, I don't think there is really any speed difference, so this is more just a matter of style.

You would because defining an IList or an ICollection would open up for other C# IList Nerelerde Kullanılıyor implementations of your interfaces.

Obviously if you are being asked which you use in an interview, you say IList, smile, and both look pleased at yourselves for being so clever. Or for a public facing API, C# IList Nedir IList. Hopefully you get my point.

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

So typically, your 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 your code is safe from any changes to concrete class kakım you are subscribing to only few of the methods of concrete class and those are the ones that are going to be there bey long kakım the concrete class inherits from the interface you are using.