如何在一個數組中合並三維數組

Question

我有以下變量：

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
*/

一個例子：

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

我想將所有三個維度合並為一個（ IEnumerable<Comment> ），其中包含所有審核的注釋，而不管存儲庫或審核操作如何。

LINQ如何做到這一點？

Answer 1

這樣做，請：

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