A ProgressBar control is used to represent the progress of a lengthy operation that takes time where a user has to wait for the operation to be finished.

Here I used ProcessBar Dynamically.

using System;
using System.Windows.Forms;
namespace ProcessBar
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
         private void btnStart_Click(object sender, EventArgs e)
        {
            //creating a dynamic ProgressBar is to create an instance of ProgressBar class.
            ProgressBarpBar = new ProgressBar(); 
                 //name of process bar
            pBar.Name = "progressBar1"; 
             // set height and width of processbar
            pBar.Width = 200; 
            pBar.Height = 20; 
             //add the ProgressBar to a Form.  
            Controls.Add(pBar); 
             //The Dock property is used to set the position of a ProgressBar
            pBar.Dock = DockStyle.Bottom; 
             //The Minimum and Maximum properties define the range of a ProgressBar
            pBar.Minimum = 0; 
            pBar.Maximum = 100; 
             //The Value property represents the current value of a ProgressBar.
            pBar.Value = 70; 
        }
    } }

Output