How to merge three dimensional array in one array

Question

I have the following variable:

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
*/

An example:

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

I want to merge all three dimensions into one ( IEnumerable<Comment> ) containing all the moderated comments, regardless of the repository or moderation operation.

How can this be accomplished with LINQ?

Answer 1

Do it like this, please:

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