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;

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

        private void button1_Click(object sender, EventArgs e)
        {
            button1.Enabled = false;
            progressBar1.Minimum = 0;
            progressBar1.Maximum = 5000;
            //设置步长
            progressBar1.Step = 1;
            for (int i = 0; i < 5000; i++)
            {
                //PerformStep用来增加进度栏的当前位置，每次增加的进度单位是前面设置的Step值
                progressBar1.PerformStep();
                textBox1.Text = "进度值：" + progressBar1.Value.ToString();
            }
        }
    }
}