如何在一个数组

Question

我有以下变量：

IEnumerable<Comment>[][] moderatedComments;
/**
* First dimension [] = The repository from where I fetched the comments (Could be more than one repository)
* Second dimension [][] = The moderation operation (There can only be two operations, so this dimension is always of size 2)
* Third dimension IEnumerable<Comment> = The moderated comments for that dimension
*/

一个例子：

Comment comment = moderatedComments[1][0].First();
// Repository 1
// Moderation operation 0
// First moderated comment for that repository and operation

我想将所有三个维度合并为一个（IEnumerable<Comment>），其中包含所有经过审核的注释，无论存储库或审核操作如何。

如何使用LINQ实现这一目标？

Answer 1

请这样做，请：

IEnumerable<Comment>[][] moderatedComments;
var merged = moderatedComments.SelectMany(x => x).SelectMany( x => x );
// merged is IEnumerable<Comment>