private void radioButton1_CheckedChanged(object sender, EventArgs e)
    {
        int smallMaxSize = 100;
        int[] array = new int[smallMaxSize];
        int loop = 0;

        Random numGenerator = new Random();

        numGenerator.Next(smallMaxSize);

        for (int i=0; i<100; i++)
        {
            array[i] = numGenerator.Next(smallMaxSize);
        }

        Numbers.Items.Add(array);

    }