title: How to access a form-control from System.Timers.Timer (cross thread problem)
body: <p>I use the system.timers.timer for my service.</p>
  
  <p>Now I build a test-form in which I use it too. In the timer_Elapsed Event I do some work and want to stop the timer it need (xxx ms) and write it on the form control to show.</p>
  
  <p>But when I access the listview, I get an cross thread error.</p>
  
  <p>Any ideas?</p>