title: How to type text into a combobox?
body: <p>I am implementing in WPF. With the normal WPF ComboBox you can only click on an item to select it from the menu that rolls down. I need a control where if the preferred item isn't in the ComboBox you can type this new, not existing, item into the ComboBox?</p>
  
  <p>How do I do this and with what control?</p>
  
  <p>Thanks</p>