You Should Know C# IEnumerable Kullanımı Göstergeleri

You Should Know C# IEnumerable Kullanımı Göstergeleri

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Botz3000Botz3000 39.4k88 gold badges106106 silver badges128128 bronze badges 1 I believe this is was not asked here so it can be a comment not an answer, but anyway makes sense from refactoring standpoint

var kısmından azıcık bahsedersek var burada gelen değeri en hayırlı nasıl saklayabileceğini belirleyip yapkaloriı bu şekilde ayarlıyor. Doğrusu IQueryable kullanıyor.

This where filter is executed on the client side where the IEnumerable code is. In other words all the data is fetched from the database and then at the client its scans and gets the record with EmpId is 2.

Now List implements IEnumerable, but represents the entire collection in memory. If you have an IEnumerable and you call .ToList() you create a new list with the contents of the enumeration in memory.

(kakım per Mike P's excellent answer) wrap an enumerator to pretend to be enumerable, there are some things that you can't really do - for example, it is hoped

Oluşturduğunuz derslikı, derme oluştururken veya hakkındalaştırma müstelzim vesair senaryolarda kullanabilirsiniz.

// but this throws C# IEnumerable Nerelerde Kullanılıyor an exception, because the pointer or link to the // database namely the DbContext called MyEntities no longer exists.

It özgü a good performance C# IEnumerable Nasıl Kullanılır when you are iterating through big objects or collections because it does hamiş load the C# IEnumerable Kullanımı entire object to memory in order to make iteration.

IEnumerable describes behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the C# IEnumerable Temel Özellikleri way. If you use ToList() you force the compiler to reify the results right away.

List, on the other hand, is a specific implementation of IEnumerable that stores 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.

Any idea why the Enumerable is "split" into "inner" and "outer"? This happens when I inspect the element in debug/break mode via mouse. Is this perhaps Visual Studio's contribution? Enumerating on the spot and indicating input and output of the Enum?

Ya sarıklı, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

On the flip side, it is usually best to declare a method’s C# IEnumerable Nedir return type by using the strongest type possible (trying derece to commit yourself to a specific type). Share Follow

You should still avoid declaring the parameter type birli List. Using IList allows the caller to pass arrays and any other objects whose type implements IList.