Change Label.Text in any step in the loop

Question

I want in this code in the any step label show the Number of that step. In the my code just show last number in the label!

I also Label.Invalidate() the done, but do not work.

    private void button1_Click(object sender, EventArgs e)
    {
        int i = 0;
        while (i<100)
        {
            i++;
            label1.Text = string.Format("Step is :{0}", i);
            System.Threading.Thread.Sleep(1000);
        } 
   }

Answer 1

http://msdn.microsoft.com/en-us/library/system.windows.forms.control.update.aspx

Invoke Update after setting text, it will help you. But of course you should consider background threads.

label1.Text = string.Format("Step is :{0}", i);
label1.Update();
System.Threading.Thread.Sleep(1000);