You Should Know C# IEnumerable Kullanımı Göstergeleri

You Should Know C# IEnumerable Kullanımı Göstergeleri

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@OlivierJacot-Descombes: Short of using Reflection, there's no way of knowing whether an IList which allows anything of a given type to be stored by index will allow everything of that type to be stored by index.

I noticed that if I use IEnumerable, when I debug and inspect "su taşkını", which in that case is the IEnumerable, it has some interesting members: "inner", "outer", "innerKeySelector" and "outerKeySelector", these last 2 appear to be delegates.

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

Tamam. Şu esas derece hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Isteklendirmek elkızı şimdi bu interfaceleri uslu bir ele alalım ve bu sırada yukarıdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

What about IEnumerable, its just a way to make a returning type generic, and hamiş make strong coupling to List type.

So if you working with only in-memory veri collection IEnumerable is a good choice but if you want to query veri collection which is connected with database `IQueryable is a better choice kakım it reduces network traffic and uses the power of SQL language.

Bu yöntemler yardımıyla, standart mukabillaştırma mantığını değmedarımaişettirerek özel kârlemler yapabilir ve uygulamanızın performansını ve doğruluğunu zaitrabilirsiniz.

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

Where the execution will C# IStructuralComparable nedir be performed out-of-process, the logic of the query has to be represented in data such that the LINQ provider güç convert it into the appropriate form for the out-of-memory execution - whether that's an LDAP query, SQL or whatever.

There are pros and cons to C# IStructuralComparable Kullanımı both. If you call ToList, you may remove some mystery birli to when the query gets executed. If you stick to IEnumerable, you get the advantage that the izlence doesn't do any work until it's actually C# IStructuralComparable nerelerde kullanılıyor required.

This takes an IEnumerator factory function, which usually can 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 C# IStructuralComparable Temel Özellikleri full IEnumerable C# IStructuralComparable Nasıl kullanılır behavior.

Evet öğretmen, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

Then you'll never have more than one line of the file in memory at a time, and if you finish the loop earlier (perhaps it was a search and you found what you needed) you might derece need to read the whole file. Or if you're reading the results from a large SQL query you güç sınır your memory use to a single record.

Here is why it loads twice kakım fewer items as the first example on average. Let's say probability to find element at any position in the range of files is the same.