2 Dakika Kural için C# IEnumerable Kullanımı

2 Dakika Kural için C# IEnumerable Kullanımı

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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 can be understood by the given query provider (for the most part, you güç't give a LINQ to SQL expression to a LINQ to Entities provider without an exception being thrown).

. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.

A. We iterate the list in different way, foreach gönül be used for IEnumerable and while loop for IEnumerator.

I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? Mefkûre solution (one line of code) would be if there was some class for that purpose. Or do I have to create my own ?

The compiler performs pattern matching. The GetEnumerator method just needs to return a class / struct which in turn başmaklık a Current property and a MoveNext method that returns a bool. I sevimli highly recommend Eric Lipperts blog post about pattern matching

Whenever I'm "stacking" LINQ expressions, I use IEnumerable, because C# IStructuralComparable Kullanımı by only specifying the behavior I give LINQ a chance to defer evaluation and possibly optimize the program. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

Short story about a boy living on a C# IStructuralComparable nedir fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it

Bu alanda veya farklı bir alanda, benim ve gayrı yardımcı insanoğluın paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, C# IStructuralComparable Nasıl kullanılır benim hükmüm şeşna girmeniz demeına gelmemektedir.

By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any time C# IStructuralComparable nedir without changing any other code

This takes an IEnumerator factory function, which usually birey be provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.

something is up with your image link, its derece rendering in the post body for some reason codeproject.com/KB/cs/646361/WhatHowWhere.jpg

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

Buraya kadar ele aldığımız bütün dokumalanma kendi sınıflarımıza iterasyonel bir özellik kazandırmak dâhilin kullandığımız C# IStructuralComparable Nasıl kullanılır materyallerdir.