ProgressBar PerformStep : ProgressBar : GUI Windows Forms C# Examples

    
using  System;
using  System.Drawing;
using  System.Windows.Forms;

public  class  ProgressBars  :  Form
{
    ProgressBar  pb;
    Label  lbl;

    public  ProgressBars()
    {
        Size  =  new  Size(300,200);

        Button  btn  =  new  Button();
        btn.Parent  =  this;
        btn.Text  =  "&Start";
        btn.Location  =  new  Point((Size.Width  /  2)  -  (btn.Width  /  2),  (Size.Height  /  4)  -  btn.Height);
        btn.Click  +=  new  EventHandler(btn_OnClick);

        lbl  =  new  Label();
        lbl.Parent  =  this;
        lbl.Size  =  new  Size(100,23);
        lbl.Location  =  new  Point((Size.Width  /  2)  -  (lbl.Width  /  2),  btn.Bottom  +  25);
        lbl.BorderStyle  =  BorderStyle.FixedSingle;
        lbl.TextAlign  =  ContentAlignment.MiddleCenter;
        lbl.Text  =  "";

        pb  =  new  ProgressBar();
        pb.Parent  =  this;
        pb.Location  =  new  Point((Size.Width  /  8),  lbl.Bottom  +  25);
        pb.Size  =  new  Size((int)(Size.Width  *  3  /  4),  20);  
        pb.Minimum  =  0;
        pb.Maximum  =  100;
    }

    private  void  btn_OnClick(object  sender,  EventArgs  e)
    {
        pb.Value  =  0;
        pb.Step  =  1;
        for  (int  i  =  0;  i  <  10;  i++)
        {
            lbl.Text  =  i.ToString();
            pb.PerformStep();
            Application.DoEvents();
            System.Threading.Thread.Sleep(20);
        }
    }

    static  void  Main()  
    {
        Application.Run(new  ProgressBars());
    }
}