Make a Windows form fade away on Close

Write this piece of code in the Form Close event to see the form fade away on close.

for(double d=1.0d; d> 0d; d-=0.2d)
{
  System.Threading.Thread.Sleep(50);
  Application.DoEvents();
  this.Opacity=d;
   this.Refresh();
}

Environment.Exit(0);