根据另一个列表中存在的属性过滤对象列表

Question

I've got a class named Container that includes an int property named Id .我有一个名为Container的 class ，其中包含一个名为Id的int属性。

I've got a list of objects List<Container> named containers .我有一个名为containers的对象List<Container> 。

I've got a list of numbers List<int> named containerIds .我有一个名为containerIds的数字List<int> 。

How can I get a subset of containers where the Id is in containerIds ?如何获取Id在containerIds中的容器子集？

Something like the following:类似于以下内容：

var result = containers.Where(x => x.Id IN containerIds);

Answer 1

You might use Contains method for that您可以为此使用Contains方法

var result = containers.Where(x => containerIds.Contains(x.Id));

Another option is to use Any Linq method另一种选择是使用Any Linq 方法

var result = containers.Where(x => containerIds.Any(i => i == x.Id));