IEnumerable和IQueryable [英] IEnumerable and IQueryable

问题描述

什么是IEnumerable和IQueryable?

what is IEnumerable and IQueryable? and what are the difference?

推荐答案

基本上；

IEnumerable<T>非常适合于使用内存中的集合，但是IQueryable<T>允许使用远程数据源，例如数据库或Web服务.

IEnumerable 没有在项目之间移动的概念，它是仅向前的收藏.非常简约大多数数据源都可以提供的功能.仅使用此最小功能，LINQ即可提供所有这些出色的运算符.

也请看一下此链接；
IEnumerable和IQueryable(1)之间的区别 [ ^ ]
IEnumerable与IQueryable之间的区别(2) [

Basically;

IEnumerable<T> is great for working with in-memory collections, but IQueryable<T> allows for a remote data source, like a database or web service.

IEnumerable doesn’t have the concept of moving between items, it is a forward only collection. It’s very minimalistic; something that most any data source can provide. Using only this minimal functionality, LINQ can provide all of these great operators.

Also have a look at this links as well;
Difference between IEnumerable and IQueryable (1)[^]
Difference between IEnumerable and IQueryable (2)[^]

Good luck,
OI

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