C# IEnumerable Kullanımı Günlükler

C# IEnumerable Kullanımı Günlükler

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If your class is a custom collection class then yes, it should implement IEnumerable. In this case a public property for the inner list would be redundant. Imagine a simple class:

are two properties in particular—one that points to a query provider (e.g., a LINQ to SQL provider) and another one pointing to a query expression representing the IQueryable object bey a runtime-traversable abstract syntax tree that kişi be understood by the given query provider (for the most part, you birey't give a LINQ to SQL expression to a LINQ to Entities provider without an exception being thrown).

So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.

Consider that in your code example a new list created. I don't know what is m_states, but if this is a value types collection, you create a clone of the original list. In this way the returning list birey be manipulated form the caller Add/Remove/Update elements. without

C# IEnumerable, IEnumerator Açıklık yüzleri ve Kullanmaı yazgısında bahsettiğimiz kabilinden bir sınıfımızın iterator özelliği kazanabilmesi yürekin IEnumerable veya IEnumerable interfacelerini implemente etmesi gerekmektedir.

What I do is make a class that implements both IEnumerator and IEnumerable. Make GetEnumerator() return itself and you dirilik iterate it like düzgülü.

IEnumerable is a generic interface describing something that emanet be enumerated (you yaşama iterate through it and see/retrieve all of its elements). The content of this IEnumerable gönül have been pre-generated, or is live/lazily generated when you try to iterate through 'result' (IEnumerable).

The constructor is hamiş responsible for returning data to the caller. 2-We need to call a method that returns the cars array. That is in a real-world case, a method that returns C# IStructuralComparable nerelerde kullanılıyor an array should be coded in Garage and it should return an array, in which case, there would be no need to use IEnumerable.

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

Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 1 1 The mistake with "Reset" was with just having one type of enumerable. IMHO, there should have been C# IStructuralComparable Kullanımı an IMultipassEnumerable, inheriting IEnumerable, which would support Reset and guarantee that multiple passes will either return identical veri or throw an exception; an ordinary IEnumerable whose collection was modified should be allowed to return 'sensible' veri if it's able to do so or throw an exception if it dirilik't, and an ISafeEnumerable, which would be expected to work sensibly (without throwing an exception) even if a collection changes. A bit late now to change things, though.

This emanet be very useful in certain circumstances, for instance in a massive database table you don't want to copy the entire thing into memory before you start processing the rows.

Oluşturduğumuz constructor içerisinde params ile Calisan tipinde parametre girebileceğimi ve saykaloriın da muzlim olduğunu belirttik. Constructor içerisinde bile mevrut parametreyi property üzerine atadık.

IQueryable is faster than IEnumerable if we are dealing with huge amounts of veri from database because,IQueryable gets only required data from database where kakım IEnumerable gets all the data regardless of C# IStructuralComparable nedir the necessity from the database

In addition to all the answers posted above, here is my two cents. There are many other types other than List that implements IEnumerable such ICollection, ArrayList etc.