Question

I have an array of which I would like to get the length of each dimension stored in an array. I.e. I would like something like the following:

Array myArray = //...Blah blah myArray is defined somewhere in code

int[] dimLengths = myArray.SomeLinqStatement...

I can do this with some for loop(s) but I was hoping there would be a simple linq statement. So for example, if myArray is a 3D array of 2x3x4 I want dimLengths to be {2, 3, 4}.

Answer 1

You don’t need LINQ. Here is a simple solution:

int[] GetDimensions(Array array)
{
    int[] dimensions = new int[array.Rank];
    for (int i = 0; i < array.Rank; i++)
    {
        dimensions[i] = array.GetLength(i);
    }
    return dimensions;
}

If you must use LINQ, you could try this, though I am sure the other way is better:

int[] dimensions = Enumerable.Range(0, array.Rank)
                             .Select(i => array.GetLength(i))
                             .ToArray();