using System;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Forms;

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

        // 1 textbox 2 buton eklenmeli

        private delegate void txtYaz(string text);
        private bool durdur = false;
        private void _txtYaz(string text)
        {
            txtSifre.Text = text;
        }
        private void sifreUret()
        {
            while (!durdur)
            {
                Thread.Sleep(100); // 100 milisaniye gecikme
                txtSifre.Invoke(new txtYaz(_txtYaz), rndmUret(10));
            }
        }

        char[] krtrLst = Enumerable.Range(0, 10).Select(x => (char)('0' + x)).ToArray();
        Random rndm = new Random();
        private string rndmUret(int uzunluk)
        {          
            StringBuilder str = new StringBuilder();
            for (int i = 0; i < uzunluk; i++)
            {
                str.Append(krtrLst[rndm.Next(0, krtrLst.Length)]);
            }
            return str.ToString();
        }

        private void btnBasla_Click(object sender, EventArgs e)
        {
            durdur = false;
            Thread t = new Thread(sifreUret);
            t.IsBackground = true;
            t.Start();
        }

        private void btnDur_Click(object sender, EventArgs e)
        {
            durdur = true;
        }
    }
}