我有一个集合单维的是这样的：

I have a collection uni-dimensional like this:

[1,2,4,5.....n]

我想该集合转换成一个二维的收藏是这样的​​：

I would like to convert that collection in a bi-dimensional collection like this:

[[1,2,3],
[4,5,6],
...]

基本上我想组或分割，如果你想，在N成员组数组

Basically I want to group or split if you want, the array in groups of 'n' members

我可以用的foreach 语句做到这一点，但我目前正在学习LINQ等等，而不是通过所有元素进行迭代，并创建一个新的数组手动我想用LINQ功能（如适用）

I can do it with a foreach statement, but I am currently learning LINQ so instead of iterating through all elements and create a new array manually I would like to use the LINQ features (if applicable)

有没有LINQ的功能，以帮助我做到这一点？

Is there any LINQ function to help me to accomplish this??

我想在 GROUPBY 或的SelectMany 我不知道他们是否会帮助我，虽然，但他们可能

I was thinking in the GroupBy or SelectMany I do not know if they will help me though but they might

任何帮助将是真正的AP preciate它=）：**

Any help will be truly appreciate it =) :**

推荐答案

您可以按索引的批量大小之分，像这样的：

You can group by the index divided by the batch size, like this:

var batchSize = 3;
var batched = orig
    .Select((Value, Index) => new {Value, Index})
    .GroupBy(p => p.Index/batchSize)
    .Select(g => g.Select(p => p.Value).ToList());