C# IEnumerable Nasıl Kullanılır Ile ilgili detaylı notlar

C# IEnumerable Nasıl Kullanılır Ile ilgili detaylı notlar

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So if we have IEnumerable bey parameter of any method, we can pass any collection types to the function. Ie we birey have method to operate on abstraction derece any specific implementation.

var kısmından beş altı bahsedersek var burada mevrut kıymeti en bol nasıl saklayabileceğini belirleyip yapısını bu şekilde ayarlıyor. Yani IQueryable kullanıyor.

The second example returns an IEnumerable that contains all the information needed to run the query later on.

It's effectively usage as documentation of intent; I find that those explicit documentations of intent tend to provide exactly that decoupling you point out.

By adding on a Where statement you aren't actually doing much of anything, you're just adding an extra filter to the query so that later on, when you actually evaluate the sequence (in this case, when ToList is called) those filters will all be applied.

static public IEnumerable VerileriGetir() yield return "Pazartesi"; yield return "Salı"; yield return "Çarşamba"; yield return "Perşembe"; yield return "Cuma"; yield return "Cumartesi"; yield return "Pazar"; Şimdi bayağıdaki harf bloğunu detaylıca inceleyelim.

The "inner" member does derece have "Animal" instances in it, but rather "Species" instances, which was very strange for me. The "outer" member does contain "Animal" instances. I presume that the two delegates determine which goes in and what C# IEnumerable Kullanımı goes out of it?

This way you have possibility to do many things with that query without touching the veri (in this case data in the list). List method takes the prepared query and executes it against the source of data.

Where the execution of a C# IEnumerable Nedir query is going to be performed "in process", typically all that's required is the C# IEnumerable Kullanımı code (kakım code) to execute each part of the query.

List, on the other hand, is a specific implementation of IEnumerable that stores C# IEnumerable Nasıl Kullanılır the objects in a specific, known manner. Internally, this may be a very good way to store your values that you expose via IEnumerable, but a List is not always appropriate.

Oh sure, you sevimli use it to create your own custom collection types. But for everyday stuff, it probably isn't kakım useful bey the collections derived from it.

IEnumerable enable implicit reference conversion for array types which known birli Covariance. Consider the following example:

C# dilinde, IEnumerator özellikle dundaki kabil koleksiyonlar üzerinde bilgi kıraat ve davranışlemlerinde yeğleme edilir:

şayet ki siz “var” işletmek istiyorsanız GetEnumerator metodunun gelişememiş dilküş tipini bayağıdaki kabilinden generic IEnumerator olarak C# IEnumerable Temel Özellikleri tanımlamanız gerekmektedir.