The following example demonstrates how to implement the IEnumerable<T> interface and how to use that implementation to create a LINQ query. When you implement IEnumerable<T>, you must also implement IEnumerator<T> or, for C# only, you can use the yield keyword.

IEnumerable is the base interface for all non-generic collections that can be enumerated. For the generic version of this interface see System.Collections.Generic.IEnumerable<T>. IEnumerable contains a single method, GetEnumerator, which returns an IEnumerator.

2024年4月4日 · 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 …

The IEnumerable<T> is an interface that represents a sequence of objects that can be enumerated. The IEnumerable<T> has a single method GetEnumerator() that returns an IEnumerator<T> which can be used to iterate through a sequence of objects.

In C#, IEnumerable and IQueryable are two interfaces that are frequently used for data manipulation and querying, but they serve different purposes and have distinct behaviors. Example to Understand IEnumerable and IQueryable in C#. Let us understand these two interfaces with examples.

2023年3月11日 · Using IEnumerable allows us to iterate from a collection or data source by moving one element at a time. It’s also important to note that all collection types in C# inherit from IEnumerable so collections you are familiar with like arrays and lists implement IEnumerable.

2024年2月9日 · In C# IEnumerable things (like arrays or Lists) have elements that come one after another. They can be looped over with foreach. Besides looping over IEnumerable things, we can invoke extension methods upon them.

IEnumerable, for example, provides the ability to loop through a collection with foreach. That is used by many inheriting classes such as List<T> . But IEnumerable doesn't offer a sort method (though you can use Linq for that) while some other generic collections like …

2012年7月2日 · You probably do not want an explicit implementation of IEnumerable<T> (which is what you've shown). The usual pattern is to use IEnumerable<T>'s GetEnumerator in the explicit implementation of IEnumerable:

A single IEnumerable method can reduce code size—this has speed advantages. For numeric methods, though, using an array directly is usually a faster approach. A generic interface, IEnumerable provides an abstraction for looping over elements.