double[,] type, how to get the # of rows? [duplicate]

Answer 1

You want the rank property on the array...

double[,] lookup = { { 1, 2, 3 }, { 4, 5, 6 } };
Console.WriteLine(lookup.Rank);

This will provide you with the number of dimensions.

Edit:
This will only provide you with the number of dimensions for the array as opposed to the number of primary elements or "rows" see @Henk Holterman's answer for a working solution.