title: Change textbox value programatically on Visual Studio Setup project
body: <p>I'm developing a Setup project using Visual Stual Studio 2008 using language C#.
  I added a Dialog with 4 textboxes to allow the users to provide some needed information.
  Is there any way to fill the value of one of the textboxes programatically, and the user only validate is it's correct and changes it if necessary.</p>