如何比较对象的2列出并删除不常见的项目？ [英] How to compare 2 lists of objects and remove the items that are not common?

问题描述

我有2不包含相同类型的所有领域泛型列表

I've got 2 generic lists that do not contain the all fields of the same type

IList<Category> and List<CategoriesRow>Categories

categoryList = IList<Category>

但两者有共同的字段名称和ID。

but both have common fields Name and ID.

我想比较所属分类列表分类，并找到那些来自哪里所属分类所属分类[指数] .ID不ID的所有类别列表中存在。对于所有那些不分类存在，我必须从CatgoryList删除它们。

I want to compare list Categories with categoryList and find those from categoryList where categoryList[index].ID does not exist in the list of all Categories of ID. For all those that do not exist in Categories, I will have to remove them from CatgoryList.

我以前的帖子中，我得到了LINQ的例子，但问题是，我必须使用动态，这意味着我传递所属分类和类别的动态。

I had a previous post in which I was given examples of LINQ, but the problem is I have to use Dynamic, implying that I am passing categoryList and Categories as Dynamic.

谁能给我一个例子，如何去了解上面的这些我都没有知道如何做到这一点。

Can anyone give me an example how to go about the above as I have no idea how to do it.

推荐答案

使用。除 LINQ运营商

这样的：

var uniqueList = list1.Except(list2);

不知道你的我必须使用动态的意思。

Not sure what you mean by "I have to use Dynamic".

这是可用于实现的IEnumerable 各类标准的LINQ操作。

This is a standard LINQ operation available to all types that implement IEnumerable.

这里的上做的好文章。

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