title: C# reset textbox to default value
body: <p>I want have reset control like webforms but in winform.
  in form design the controls have a default value. I want when user edit the controls, after press a reset button, the controls get their default values.
  after i searched in internet I found ResetText() method, but unfortunately I didn't find good example for it.
  if you know about it please let me know. :)</p>