Method 2d-array display

Question

Hi my question is how do I display all the numbers in my 2 dimensional array. I only manage to display the total sum of all the number of my array. If you could help me I be very thankful.

    int[,] A = new int[5, 7];
    Random rand = new Random();
    private void SumAll(int[,] array)
    {
        int sum = 0;
        int rows = array.GetLength(0);
        int cols = array.GetLength(1);

        for (int i = 0; i < rows; i++)
        {
            for (int j = 0; j < cols; j++)
            {
                    array[i, j] = rand.Next(-100, 100);
                    sum += array[i, j];
                    richTextBox1.AppendText(array[i, j] + "Sum is: " + sum);
            }
        }
        richTextBox1.Text = (sum.ToString());
    }

Artyom Neustroev · Accepted Answer · 2014-04-11 06:14:55Z

1

I guess, you are overwriting all changes with this line:

richTextBox1.Text = (sum.ToString());

Change it to:

richTextBox1.AppendText(sum.ToString());

UPD: to display grid-like use this:

   for (int i = 0; i < rows; i++)
   {
      for (int j = 0; j < cols; j++)
         {
            array[i, j] = rand.Next(-100, 100);
            sum += array[i, j];
            richTextBox1.AppendText(array[i, j] + " ");
         }
         richTextBox1.AppendText("Sum is: " + sum);
         richTextBox1.AppendText(System.Environment.NewLine);
   }
   richTextBox1.AppendText("Total sum: " + sum);

edited Apr 11, 2014 at 6:14

answered Apr 11, 2014 at 5:36

Artyom Neustroev

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2 Comments

TheBoringGuy Over a year ago

Is there a way I can display them in a grid ? so they dont cling together in a long line?

Artyom Neustroev Over a year ago

@TheBoringGuy sorry, I didn't check whether this method exists. I will update by answer.

pennstatephil · Accepted Answer · 2014-04-11 05:34:25Z

0

You should use the same nested for loop structure that you used to generate the numbers and create the sum, just printing each element along the way.

answered Apr 11, 2014 at 5:34

pennstatephil

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