LINQ查询语法

本文介绍了LINQ查询语法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有两个不同的列表，其中一个是像List<int> idsList中一样的一堆ID，但是另一个是像List<MyObject> myObjectList这样的对象列表，其中的对象看起来像这样:

I have two different lists where one is a bunch of ID's as in a List<int> idsList, the other however is a list of objects like List<MyObject> myObjectList where the object looks like this:

class MyObject{ private List<int> ids; public MyObject(List<int> ids){ this.ids = ids; } public List<int> Ids{ get{ return ids; } } }

如您所见，每个对象可以包含一个或多个ID(永远不能为零或null).因此，我最后需要知道myObjectList中的哪些对象具有来自idsList的任何ID. 到目前为止，如果我这样做:

As you can see each object can contain one or multiple IDs (never zero or null ids). So what I need at the end is to know what objects in myObjectList have any id(s) from my idsList. So far if I do:

var ids = from g in onScreen where g.Ids.Contains(myIntVariable) select g;

它将给我包含myIntVariable的对象的列表.我不知道该怎么做，就是将idsList的内容与MyObject中的列表进行匹配. 谢谢！

it would give me a list of the object(s) that contain myIntVariable. What I do not know how to do is to match the content of the idsList with the list in MyObject. Thanks!

推荐答案

一种方法:

var listOfMyObjectsContainingAnIdFromIdsList = myObjectList.Where(myObject => myObject.Ids.Any(id => idsList.Contains(id)));