using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {

        DialogResult resultaat;
        
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < 10; i++)
            {
                textBox1.AppendText(i + " ");

                resultaat = MessageBox.Show("Wilt u het opnieuw proberen?", "Proberen?", MessageBoxButtons.YesNo);
                if (resultaat == DialogResult.Yes)
                {
                    continue;
                }
                else if (resultaat == DialogResult.No)
                {
                    break;
                }
 



            }
        }
    }
}