CODEWITHSUNDEEP
c#arrayslist
oooa s
oooa s

Reputation: 35

List to Jagged Array in C#

I have a list 

List<int> list = new List<int>();

Now I want to add this to a Jagged Array

int[][] A = new int[][] { list.ToArray() };

This code on top is ok, but the problem is that all values in the list are add in the first block! Well, then, this will be solved:

int[] x1 = list.ToArray();
int[][] A = new int[][] { new[] { x1[0] }, new[] { x1[1] }, new[] { x1[2] }, new[] { x1[3] } };

But (the code above) I've done this manually now, that's just the first four indexes I've of list put in the array..

How can I add entire list (all indexes) to my jagged array (with circles or other methods).

Upvotes: 3

Views: 1935

Answers (1)

Travis J
Travis J

Reputation: 82267

Use a projection.

This will iterate through the list, creating a new array with the sole value of the current iteration, and then end by creating an array of all of those arrays.

int[][] A = list.Select(i => new[] { i }).ToArray();

As an aside, and as [@maccettura] notes, this is a jagged array (where each member of the array is also an array itself).

Upvotes: 6

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