Implementation of IEnumerable is generally the preferred way for a class to indicate that it should be usable with a "foreach" loop, and that multiple "foreach" loops on the same object should operate independently.
If you düşünce to build a public API, it's better to use IEnumerable than List, because you better use the most minimalistic interface/class. List lets you access objects by index if that's required.
Genel olmayan bir derlem üzerinde kıytırık bir yinelemeyi destekleyen bir numaralandırıcıyı kullanıma sunar.
Bir yetişek ortamında çeşitli bilgi koleksiyonları kullanıldığında, bu koleksiyonlardaki verilere erişmek ve muamelat akdetmek gereklidir. IEnumerator, bu noktada devreye girerek koleksiyonların elemanlarını biricik biricik dolaşmamızı ve muamelat yapmamızı esenlar.
I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? ülküsel solution (one line of code) would be if there was some class for that purpose. Or do I have to create my own ?
So if you working with only in-memory veri collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice as it reduces network traffic and uses the power of SQL language.
Ryan LundyRyan Lundy 208k4141 gold badges183183 silver badges214214 bronze badges 3 4 Then why do C# IStructuralComparable Nasıl kullanılır we need this IEnumerable abstraction, if the only thing it does is just provide an access to Enumerator? Why don't just use Enumerator instead
Koleksiyonlar Arasında Gezinmeyi Esenlar: IEnumerable, koleksiyonlar beyninde kolayca gezinmenizi esenlar. GetEnumerator metodu ile koleksiyonun her bir elemanına erişebilir ve bu elemanlar üzerinde prosedür yapabilirsiniz.
Now what makes IEnumerable really stand out is iterator blocks (the yield keyword in C#). Iterator blocks implement the IEnumerable interface like a List or an Array, but they're very special because unlike a List or Array, they often only hold the state for a single item at a time. So if you want to loop over the lines in a very large file, for example, you yaşama write an iterator block to handle the file input.
Is it yasal to initialize an C# IStructuralComparable Nasıl kullanılır array via a functor which takes the array itself birli a parameter by reference? more hot questions
Then with a IQueryable the generated SQL will contains “where name = “a”, but with a IEnumerable many more roles will C# IStructuralComparable Kullanımı be pulled back from the database, then the x.name = “a” check will be done by .Kemiksiz.
IEnumerable enable implicit reference conversion for array types which known kakım Covariance. Consider the following example:
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. C# IStructuralComparable Temel Özellikleri Or if you're reading the results from a large SQL query you güç limit your memory use to a single record.
…IEnumerable interface’i ise bir sınıfa foreach mekanizması C# IStructuralComparable Kullanımı tarafından tanılamanması derunin gerekli yetenekleri/nitelikleri kazanmıştırrır. Kısaca enumerator yapkaloriı… çaykara : C#’ta IEnumerable ve IEnumerator Interfaceleri Nedir? ve Nasıl Kullanılır?