title: asp.net prevent form submission twice
body: <p>I have a web forms web application (asp.net 2.0). When the user submits the form I have the submit link actually going away so they can't submit it again. However, they could press F5 and that is causing another insert into the database, which I don't want to have happen.</p>
  
  <p>Is there a setting of some sort that I can set if/when they do press F5 to tell the page - don't submit again?</p>