Loop through a two-dimensional array with foreach loop in CSharp

using System; /*w  ww .  ja v a 2  s.  c o m*/
 
public class MainClass {     
  public static void Main() { 
    int sum = 0; 
    int[,] nums = new int[3,5]; 
 
    for(int i = 0; i < 3; i++)  
      for(int j=0; j < 5; j++) 
        nums[i,j] = (i+1)*(j+1); 
 
    foreach(int x in nums) { 
      Console.WriteLine("Value is: " + x); 
      sum += x; 
    } 
    Console.WriteLine("Summation: " + sum); 
  } 
}