Final Review_23 (Message Box)

Ex 23.    Use a loop to count the number of values, between 1000 and 2000, that are divisible by 7. Display the count in a Messagebox.

namespace Final_Review_23
{

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnDisplay_Click(object sender, EventArgs e)
        {
            string counterNo = string.Empty;
            int result = 0;
            for (int counter = 1000; counter <= 2000; counter++)
            {
                if (counter % 7 == 0)
                {
                    result++;
                    counterNo += counter.ToString() + " ";
                }
            }
            MessageBox.Show(counterNo + "\n\nTotal: " + result.ToString());
            //for only counter no:
            // MessageBox.Show(result.ToString());
        }
    }
}