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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private delegate void SetProgessBar(int value);
        private void setProgessBar(int value) {
            if (this.InvokeRequired)
            {
                SetProgessBar spb = new SetProgessBar(setProgessBar);
                this.Invoke(spb, new object[] { value });
            }
            else {
                this.progressBar1.Value = value;
            }
        
        }

        private void SetPro() {
            MessageBox.Show(progressBar1.Maximum.ToString());
            MessageBox.Show(progressBar1.Minimum.ToString());

            for (int i = 0; i <= 100; i++)
            {
                Thread.Sleep(200);
                //progressBar1.Value = i;
                setProgessBar(i);
            }       
        }
        private void button1_Click(object sender, EventArgs e)
        {
            Thread th = new Thread(new ThreadStart(SetPro));
            th.Start();
        }
    }
}