title: C# opening a new WinForm and closing the Form that created it
body: <p>Here's my code</p>
  
  <p>Form1</p>
  
  <pre><code>TicketDetails td = new TicketDetails(getTicketID());
  td.Show();
  </code></pre>
  
  <p>I want to close Form1 when td is shown.</p>