Add a dimension to a multidimensional array in c#

Question

I have a multidimensional array

byte[,] matrix;

and i want copy in a 3 dimension array

byte[,,] 3dplan; 

in this way

3dplan[,,0]=matrix

What is the fastest way to accomplish this task in c#?

Answer 1

You need to manually copy the elements in a nested loop; there is no faster way.

If you switch to a jagged array (byte[,][] or byte[][][]), you can insert the smaller array as-is into a slot in the larger array (although they will both refer to the same array instance and will pick up changes)