Question

I thought this was straight forward, but given a multi-dimensional array

        string[,] table = new string[,] 
        {
            {"Apple", "Banana", "Clementine", "Damson"},
            {"Elderberry", "Fig", "Grape", "Huckleberry"},
            {"Indian Prune", "Jujube", "Kiwi", "Lime"}
        };

How can I return a specific array using an index?

I tried the following but it does not work.

string[] firstArray = table[0];

Thank you.

Answer 1

Forr you the best approach is an extension method on array.Then you can invoke it in everywhere.
see below.Since you may have many such arrays in your project once you implement an extension method you can apply to any array as table.method(row)

 public static class ext{
            public static string[] twodim(this string[,] inarr, int row) {
                string[] ret = new string[inarr.GetLength(1)];
                for (int i = 0; i < inarr.GetLength(1); i++)
                    ret[i] = inarr[row, i];
                return ret;
            }
        }
 public class Program{
       static void dump(string name, string[] arr){
           Console.WriteLine(name);
           for (int i = 0; i < arr.Length; i++)
               Console.WriteLine("  {0}  ", arr[i]);
       }
  static void Main(string[] args){
     string[,] table = new string[,] {
            {"Apple", "Banana", "Clementine", "Damson"},
            {"Elderberry", "Fig", "Grape", "Huckleberry"},
            {"Indian Prune", "Jujube", "Kiwi", "Lime"}
        };

     dump("Row 0", table.twodim(0));
    dump("Row 0", table.twodim(1));
dump("Row 0", table.twodim(2));

  }