title: Timer to refresh form
body: <p>I have a form that I want to update every x sec.
  To set the sec that I want i used a combobox with 60,120,180,240 and 300
  This should determine the sec. 
  The timer is running, no problems there. 
  But ... I can't set the timer to read howmany sec he must run. And, when the timer hits the sec het should restart, that is also a problem. 
  I'm very new in c#, taking lessons etc, but that is something I can't figure out. (sorry for my poor english).
  Can I get some help here?
  This is what I got sofare.</p>
  
  <pre><code>_ticks++;
  label1.Text = _ticks.ToString();
  if (_ticks == 10)
  {
      label1.Text = "Done";
  }
  </code></pre>
  
  <p>and this is how I fill the combo</p>
  
  <pre><code>this.cmbRefresh.Items.AddRange(new object[] { "OFF", "60", "120", "180", "240", "300" });
  </code></pre>
  
  <p>I know I don't have much, but I don't know where to begin.
  thanks in advance</p>